Journal articles on the topic 'Aluminium alloy'

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1

Zou, Cheng Lu, Gui Hong Geng, and Wei Ye Chen. "Development and Application of Aluminium-Lithium Alloy." Applied Mechanics and Materials 599-601 (August 2014): 12–17. http://dx.doi.org/10.4028/www.scientific.net/amm.599-601.12.

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The history of aluminium-lithium alloys development has been reviewed in this paper. According to the strength, weld ability and corrosion resistance, thermal stability and plasticity, aluminium-lithium alloy has been categorized and the defects of aluminium-lithium alloys in early stage have been analyzed. As compared the third generation of aluminium-lithium alloy with normal aluminum alloy and composite materials, it indicates aluminium-lithium alloy has better performance, lower cost and reduced weight. After analyzing the advantages and disadvantages of the rapid solidification, ingot casting metallurgy and electromagnetic simulated microgravity methods in synthesis of aluminium-lithium alloy, it has been found microgravity method has prominent effect on reducing the alloy segregation and lithium losses. Finally, the future development of aluminium-lithium alloys has been discussed.
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2

Han, Yu, Bao An Chen, Zhi Xiang Zhu, Dong Yu Liu, and Yan Qiu Xia. "Effects of Zr on Microstructure and Conductivity of Er Containing Heat-Resistant Aluminum Alloy Used for Wires." Materials Science Forum 852 (April 2016): 205–10. http://dx.doi.org/10.4028/www.scientific.net/msf.852.205.

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It has particular heat-resistant property and conductivity of high-conductivity heat-resistant Aluminium alloys, which would be wildly applied in transmission and transformation flied. Al-Er-Zr alloys containing different content of Zr were prepared. The effect of Zr on microstructure of heat-resistance Aluminum alloy were studied by using of STEM, and thermodynamic behavior of Zr in Aluminium alloy was analyzed based on the theory of alloy phase formation. The results showed that the effect of Zr content on the grain size of heat-resistant aluminum alloy was remarkable, and the conductivity of heat-resistance Aluminum alloy was influenced.
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3

Zhou, Jia, Jun Ping Zhang, and Ming Tu Ma. "Study on the Formability of Aluminium Alloy Sheets at Room and Elevated Temperatures." Materials Science Forum 877 (November 2016): 393–99. http://dx.doi.org/10.4028/www.scientific.net/msf.877.393.

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This paper presents the main achievements of a research project aimed at investigating the applicability of the hot stamping technology to non heat treatable aluminium alloys of the 5052 H32 and heat treatable aluminium alloys of the 6016 T4P after six months natural aging. The formability and mechanical properties of 5052 H32 and 6016 T4P aluminum alloy sheets after six months natural aging under different temperature conditions were studied, the processing characteristics and potential of the two aluminium alloy at room and elevated temperature were investigated. The results indicated that the 6016 aluminum alloy sheet exhibit better mechanical properties at room temperature. 5052 H32 aluminum alloy sheet shows better formability at elevated temperature, and it has higher potential to increase formability by raising the temperature.
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4

Zhu, Sheng, Guo Feng Han, Xiao Ming Wang, Yu Xiang Liu, and Zhi Qian Wang. "Electrochemical Characteristics of TiAl Coating on Aluminum Alloy Surface by Supersonic Particles Deposition." Advanced Materials Research 1051 (October 2014): 199–203. http://dx.doi.org/10.4028/www.scientific.net/amr.1051.199.

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In this study, Ti-45Al-7Nb-4V alloy protective coating which base on γ-TiAl phase was deposited on the surface of 5803 aluminum alloy by supersonic particles deposition technology. Researchers observed the micro-structure of the TiAl alloy casting and coating by SEM, and researched the electrochemical characteristics and the galvanic corrosion between TA2 titanium alloy and 5083 aluminum alloy or TiAl alloy casting and coating by electrochemical work station. The results show that,the galvanic corrosion current between 5083 aluminium alloy and TA2 titanium alloy declines from 16.2μA to 0.27μA after TiAl protecting coatings are prepared on the substrates, besides, the corrosion susceptibility drops from E degree to A degree. It also manifests that the 5083 aluminium alloy with Ti-45Al-7Nb-4V coatings can be contacted and utilized with TA2 titanium alloy directly, which tackles the issues of gavanic corrosion prevention between aluminium alloys and titanium alloys.
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5

Huynh, Khanh Cong, and Luc Hoai Vo. "Modification of aluminium and aluminium alloys by AL-B master alloy." Science and Technology Development Journal 17, no. 2 (June 30, 2014): 56–66. http://dx.doi.org/10.32508/stdj.v17i2.1315.

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Chemical compositions and microstructures affect on mechanical – physical and working properties of aluminium and aluminum alloys. Transition elements, such as Ti, V, Cr, Zr in solid solution greatly reduce the electrical conductivity of aluminium and its alloys. For reduction of detrimental effects of transition elements, Al-B master alloys are added into molten aluminium to occur reactions of boron and transition elements to form diborides of titanium, vanadium, chromium and zirconium, which are markedly insoluble in molten aluminium, then these transition elements have an insignificant effects on conductivity. In addition, Al-B master alloys is also used as a grain refiner of aluminium and aluminium alloys. Aluminium borides particles in Al-B master alloys act as substrates for heterogeneous nucleation of aluminium and its alloys. Al-B master alloys are prepared from low cost materials, such as boric acid H3BO3 and cryolite Na3AlF6, by simple melting method, easily realize in electrical wire and cable factories.
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6

Bouzekova-Penkova, Anna, and Adelina Miteva. "Some Aerospace Applications of 7075 (B95) Aluminium Alloy." Aerospace Research in Bulgaria 34 (2022): 165–79. http://dx.doi.org/10.3897/arb.v34.e15.

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Nowadays, aluminium alloys are of growing interest to scientists and are widely used in aerospace and allied industries due to their inherent lightness, high strength to weight ratio, excellent thermal and electrical conductance, good reflectivity and low working cost. Among the conventional structural materials used in aerospace applications aluminium alloys are frontrunners. This is due to the ability of modern aluminium alloys to achieve unique combination of properties, through alloying and heat treatment, tailored to particular applications. Aluminum alloy 7075 (B95) is a high-strength alloy that works in extreme conditions and is used in modern construction of aircraft, spacecraft and satellites. In this mini-review, we will briefly focus on some of the existing and growing applications of some 7xxx aluminum alloys, in particular 7075 (B95), in the aerospace industry. Possible options for continuing work in this area are considered, and some Bulgarian developments are presented.
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7

Mounika, G. "Closed Loop Reactive Power Compensation on a Single-Phase Transmission Line." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (June 20, 2021): 2156–59. http://dx.doi.org/10.22214/ijraset.2021.35489.

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Zinc-aluminium alloys are alloys whose main ingredients stay zinc and aluminium. Other alloying elements clasp magnesium and copper .Zinc Aluminum Alloys over the past decayed are occupying attention of both researches and industries as a promising material for tribological applications. At this moment commercially available Zinc-Aluminium alloys and bearing bronzes due to good cost ability and unique combination of properties. They can also be deliberated as competing material for cast iron, plastics and even for steels. It has been shown that the addition of alloying elements including copper, silicon, magnesium, manganese and nickel can improve the mechanical and tribological properties of zinc aluminum alloys. This alloy has still found limited applications encompassing high stress conditions due to its lower creep resistance, compared to traditional aluminum alloys and other structural materials. This has resulted in major loss of market potential for those alloy otherwise it is excellent material. The aim of this paper is to measure the coefficient of friction and wear under different operating conditions for material with silicon content. Then wear equation will be found out for all the materials experimented under various conditions. In this paper there is discussion of the effect of Silicon on tribological properties of aluminium based Zinc alloy by experiment as well as Ansys software based and compares the same.
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8

Hung, Dao Quoc, Dũng Trần Thanh, Thắng Đinh Văn, Duy Huỳnh Nhật, and Lập Thượng Công. "Fabrication technology for aluminium-alloy tanks carrying petroleum and chemical substances in Viet Nam." Science & Technology Development Journal - Engineering and Technology 3, SI2 (April 15, 2021): first. http://dx.doi.org/10.32508/stdjet.v3isi2.568.

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Compared to steels, aluminium-alloys are comparably strong but 3 times lighter, inoxidable and unfavorable to producing mechanical sparks. Aluminium alloys are therefore attractive materials and have been widely applied to transportation industry in developed countries since 1950s. An alunimium-alloy tank has upto 20% more useful volume than a steel tank for the same total weight. Interior and exterior protective coatings are unnecessary, significantly saving annual maintenance costs and preventing any contamination from abrasion of interior protective coatings. In additional, an aluminim-alloy tank does not ignite a fire in traffic accident. In G7 regions as well as many developed countries in Europe and Asia, only tanks made from aluminim alloys are approved for carrying danger liquids such as petroleum and chemical substances. In Vietnam, International Machine And Equipment (IMAE) Company is considered as a pioneer in designing and manufacturing aluminium alloy-tanks satisfying American DOT 406 Standard for tank trucks and semi-trailers. With optimized designing and manufacturing processes in conjunction with quality control system and continuous improvement, product quality is strictly maintained, quickly providing benefits to customers. Using an aluminium-alloy tank for carrying petroleum for 25 years, a complete payback can be achieved after only 7 months although initial investment is considerablely high.
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9

Wongpreedee, Kageeporn, Panphot Ruethaitananon, and Tawinun Isariyamateekun. "Interface Layers of Ag-Al Fusing Metals by Casting Processes." Advanced Materials Research 787 (September 2013): 341–45. http://dx.doi.org/10.4028/www.scientific.net/amr.787.341.

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The materials of fusing metals commercially used in the jewelry niche marketing is seen as precious metals. An innovation of fusing metals searched for new materials to differentiate from the markets for mass production. In this research, it studied the bonding processes of silver and aluminium metals by casting processes for mass productions. The studies had been varied parameters on the types of aluminium and process temperature controls. This research had used two types of aluminium which were pure aluminium 99.99% and aluminum 5083 alloys bonding with pure silver 99.99%. The temperatures had been specified for two factors including casting temperature at X1, X2 and flasking temperature at Y1, Y2. From the results, it was found that the casting temperature at 730°C and the flasking temperature at 230 °C of pure silver-aluminum 5083 alloys bonding had the thinnest average thickness of interface at 427.29 μm. The microstructure of pure silver-aluminum 5083 alloy bonding was revealed eutectic-like structures at the interfaces. The EDS analysis showed the results of compounds at interface layers of Ag sides giving Ag2Al intermetallics on pure silver-aluminum 5083 alloy bonding unlike pure silver-pure aluminium bonding giving Ag3Al intermetallics.
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10

Mamala, A., and W. Sciężor. "Evaluation of the Effect of Selected Alloying Elements on the Mechanical and Electrical Aluminium Properties." Archives of Metallurgy and Materials 59, no. 1 (March 1, 2014): 413–17. http://dx.doi.org/10.2478/amm-2014-0069.

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Abstract Modern industry expects aluminum products with new, unusual, and well-defined functional properties. Last years we are able to notice constant development of aluminium alloys. In food industry, power engineering, electrical engineering and building engineering, flat rolled products of 1XXX series aluminium alloys are used.8XXX series alloys registered in Aluminium Association during last 20 years may be used as an alternative. These alloys have very good thermal and electrical conductivity and perfect technological formability. Moreover, these materials are able to obtain by aluminium scrap recycling. Fundamental alloy additives of 8XXX series are Fe, Si, Mn, Mg, Cu and Zn. Aluminium alloying with these additives makes it possible to obtain materials with different mechanical ale electrical properties. In this paper, the analysis of alloy elements content (in 8XXX series) effect on chosen properties of material in as cast and after thermal treatment tempers has been presented.
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11

Student, Mykhajlo, Sergiy Markovych, Volodymyr Hvozdetskii, Khrystyna Zadorozhna, Igor Kovalchuk, and Yurii Dzjoba. "Wearproofness of Layers of Oxide of Formed by Method of Hard Anodization (Hard Anodic Coatings) at Strengthening of Details of Agroindustrial Technique." National Interagency Scientific and Technical Collection of Works. Design, Production and Exploitation of Agricultural Machines, no. 51 (2021): 182–87. http://dx.doi.org/10.32515/2414-3820.2021.51.182-187.

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In the last years in an agroindustrial production there is a tendency on replacement of cast-iron details on a detail from aluminium alloys at execution on поверхю of strengthening layer. An ironmaking is accompanied the extrass of plenty of carbon dioxide in an atmosphere. Substituting of cast-iron details by aluminium will decrease the amount of extrass of carbon dioxide in an atmosphere, and substantially will decrease weight of constructions. Hard anodization is used practically in all of industries of industry: avsup and motor-car industry; hydraulics; electronics; heater platforms and tiles; medical devices. This method will allow to promote mechanical descriptions of aluminium alloys the method of forming of the anodized layers on their surface. The synthesis of the anodized layer on an aluminum alloy was performed in a 20% solution of sulfuric acid at a temperature of (-8…-2 ˚C). During anodizing, the current density was 5 A / dm2. The anodizing times were 60, 120 and 180 minutes. Conducted metallographic studies and phase analysis of the layers. Reduction of moisture content was performed at a temperature of 400˚C for 60 minutes. It was found that the oxide layer (Al2O3 • H2O) during hard anodizing on aluminum alloys forms not only oxygen ions, which are formed due to the decomposition of water, but also its neutral atoms, which are formed from the solution. It was found that the microhardness and layer thickness increase with increasing anodizing time. After heat treatment, the number of water molecules decreases and the microhardness increases. Increasing the microhardness increases the resistance to abrasive wear. Conclusions: The layer of oxide in the composition contains to three molecules of water, which reduce a microhardness, and and wearproofness of the anodized layer substantially. The layers of oxide on aluminium alloys are formed the method of cold anodization at low temperatures -8…-4 ˚C to 6 time promote abrasive wearproofness of aluminium alloy of D16. Heat treatment for the temperatures of 400˚C during 2 hours promotes abrasive wearproofness of aluminium alloy on an order.
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12

Kucharčík, L., M. Brůna, and A. Sládek. "Influence of Chemical Composition on Porosity in Aluminium Alloys." Archives of Foundry Engineering 14, no. 2 (June 1, 2014): 5–8. http://dx.doi.org/10.2478/afe-2014-0026.

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Abstract Porosity is one of the major defects in aluminum castings, which results is a decrease of a mechanical properties. Porosity in aluminum alloys is caused by solidification shrinkage and gas segregation. The final amount of porosity in aluminium castings is mostly influenced by several factors, as amount of hydrogen in molten aluminium alloy, cooling rate, melt temperature, mold material, or solidification interval. This article deals with effect of chemical composition on porosity in Al-Si aluminum alloys. For experiment was used Pure aluminum and four alloys: AlSi6Cu4, AlSi7Mg0, 3, AlSi9Cu1, AlSi10MgCu1.
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13

Mohammed A. Abuqunaydah, Zayad M. Sheggaf, Muheieddin Meftah Elghanudi, and Salem A. Salem. "Recyclability of aluminium piston alloy." مجلة جامعة بني وليد للعلوم الإنسانية والتطبيقية 8, no. 3 (September 7, 2023): 99–103. http://dx.doi.org/10.58916/jhas.v8i3.122.

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One of the most recycled and recyclable materials now in use is aluminium. Frequently, aluminium cans, automobile components, and window frames are recycled back into itself. A vital component of the contemporary aluminium industry is recycling. Recycled aluminium production uses only around 5% of the energy required to produce new aluminium, resulting in lower carbon emissions and cost savings for both corporations and end users. As a result, today's use of roughly 75% of all aluminum created throughout history. Recycling rates for aluminium exceed 90% in the majority of industrial sectors, including the construction and automobile industries. Every year, the United States saves more than 90 million barrels of oil equivalent through industry recycling. Capability to re-melting aluminium alloys scrap without losing its alloying elements and finding optimum pouring temperature are the purpose of this paper, and the results will determine the possibility of reusing piston alloy to make components similar to those they were recycled from. Automotive cast aluminium scrap obtained from pistons were used as experimental specimens, which were melted via an electrical furnace then poured at four different temperatures, namely 680, 720, 760, and 800 °C into a strip fluidity steel mould. The chemical composition of the four specimens were examined using spark emission spectrometer and the length of melted metal that flowed through the mould strips was measured as well to determine fluidity. Also, an optical microscope was used to detect microstructure defects. The chemical composition ratios of alloying elements before and after recycling showed that the resulting alloys could be closely equivalent to the commercial alloy that was originally used to make the components. In addition, the higher the pouring temperature the greater the casting fluidity. Generally, the consumed aluminium piston alloy can be re-melted and used to produce many parts.
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14

Rashid, Mohd Warikh Abd, Fariza Fuziana, Effendi Mohamad, Mohd Rizal Saleh, Teruaki Ito, and Toshihiro Moriga. "Aluminium Alloy Recycling for Sustainable Manufacturing." Proceedings of Manufacturing Systems Division Conference 2016 (2016): 504. http://dx.doi.org/10.1299/jsmemsd.2016.504.

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15

Fan, Yang Yang, and Makhlouf M. Makhlouf. "Castable Aluminium Alloys for High Temperature Applications." Materials Science Forum 765 (July 2013): 8–12. http://dx.doi.org/10.4028/www.scientific.net/msf.765.8.

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Most traditional aluminium casting alloys are based on the aluminium-silicon eutectic system because of its excellent casting characteristics. However, the solidus in this system does not exceed 577 °C and the major alloying elements used with silicon in these alloys have high diffusivity in aluminium. Therefore, while these elements enhance the room temperature strength of the alloy, they are not useful at elevated temperatures. Considering nickel-base superalloys, whose mechanical properties are retained up to temperatures that approach 75% of their melting point, it is conceivable that castable aluminium alloys can be developed on the same basis so that they are useful at temperatures approaching 300 °C. In this publication, we present the thought process behind developing a new castable aluminum alloy that is designed specifically for such high temperature applications and we present the alloy’s measured castability characteristics and its elevated temperature tensile properties.
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16

Huang, Chuan Yong. "Electroless Ni-La-P Coatings on 2024 Aluminum Alloys for Aircraft Structure." Applied Mechanics and Materials 224 (November 2012): 348–51. http://dx.doi.org/10.4028/www.scientific.net/amm.224.348.

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2024 aluminium alloys are widely used in airframe construction.However,this series of alloys are susceptible to corrosion to limit their usefulness,In this study,electroless Ni-La-P alloy plating on aluminum alloy and the effects of pH value,temperature and concentration of LaNiO3 on deposition rate were investigated.Surface morphology and corosion-resistant of the electroless Ni-La-P deposits were evaluated.The results showed the corrosion-resistant in 5% NaC1 solutions obviously enhance compared with original aluminum alloy using electroless Ni-La-P deposition method.
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17

Jaiganesh, V., D. Srinivasan, and P. Sevvel. "Optimization of process parameters on friction stir welding of 2014 aluminum alloy plates." International Journal of Engineering & Technology 7, no. 1.1 (December 21, 2017): 9. http://dx.doi.org/10.14419/ijet.v7i1.1.8906.

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Aluminum Alloy 2014 is a light weight high strength alloy used widely in the aerospace and also in other industries. 2014 is the second most popular of the 2000-series aluminium alloys, after 2024 aluminium alloy. However, it is difficult to weld, as it is subject to cracking. Joining of 2014 aluminium alloy in friction stir welding which is based on frictional heat generated through contact between a rotating tool and the work piece. Determination of the welding parameters such as spindle speed, transverse feed , tilt angle plays an important role in weld strength. The whole optimization process is carried out using Taguchi technique. The SEM analysis is done to check the micro structure of the material after welding by electron interaction with the atoms in the sample. Tensile test have been conducted and the s-n ratio curve is generated. The test is conducted and analysed on the basis of ASTM standards.
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18

Sun, Gang, Xiao-Yong Sun, and Jian-Hang Fu. "Web Crippling Behaviour of High-Strength Aluminium Alloy Channel Sections under Concentrated Loading: Numerical Modelling and Proposed Design Rules." Buildings 13, no. 7 (July 19, 2023): 1823. http://dx.doi.org/10.3390/buildings13071823.

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Two types of high-strength aluminium alloy (HA)—namely, AA-6086 and 7075-T6—have been developed and extensively used in recent years. These high-strength aluminium alloys offer advantages such as lower prices and higher yield strength than traditional alloys. The webs of aluminium channel members under concentrated loads are susceptible to web buckling failure, which restricts their applications. However, no research work has been reported that has evaluated the web buckling performance of high-strength aluminium alloy channel sections subjected to end-two-flange (ETF) loading, and the material characteristics of these high-strength aluminium alloys differ significantly from those of conventional aluminium alloys. This work addresses this gap by conducting a detailed numerical investigation. A parametric investigation consisting of 1024 models was performed using the finite element (FE) models previously developed for traditional aluminium alloys. A wide range of high-strength aluminium alloy sections covering varying web slenderness ratios, internal corner radii, bearing lengths, and aluminium alloy grades were considered in this investigation. It was shown that the latest design recommendations in the Australian and New Zealand Standards (AS/NZ S4600) and (AS/NZS 1664.1) were over-conservative when estimating the web buckling strength of such channel sections. Finally, new web buckling design equations for high-strength aluminium alloy channel sections were proposed through reliability analysis in this investigation.
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Shen, Hua, He Liang, Wei Dong Yang, Guang Chun Yao, and Chuan Sheng Wang. "Effect of Y on Microstructure and Mechanical Properties of Aluminium Alloy." Applied Mechanics and Materials 421 (September 2013): 250–54. http://dx.doi.org/10.4028/www.scientific.net/amm.421.250.

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The effects of yttrium (Y) on microstructures and mechanical properties of aluminium alloy were investigated in detail by scanning electronic microscope (SEM), energy dispersive spectrum (EDS),X-ray diffraction and tensile test. The results show that the trend of alloys tensile strength and elongation with increasing of the Y content is a broken line. When the Y content is increased up to 0.30%, the tensile strength and elongation are 105MPa and 10.50% respectively, meanwhile, the fractograph exhibited typical ductile dimple fracture pattern. Then the alloy performance is best. The high strength of aluminum alloy is attributed to the size of Al2Y phase. Addition of Y above 0.30% in aluminum alloy may generate more the coarse Al2Y particle. It can induce the decrease in the material performance.
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20

Yadwinder Pal Sharma and Pardeep Kumar. "Effect of Welding Parameters on The Properties of Aluminium Alloys 6063 and 6101 Welded with Friction Stir Welding." Asian Review of Mechanical Engineering 3, no. 2 (November 5, 2014): 43–47. http://dx.doi.org/10.51983/arme-2014.3.2.2379.

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Friction stir welding (FSW) has got wide attraction in aerospace and automobile industries, as conventional fusion welding techniques are susceptible to various welding defects like cracks and porosity, Welding of aluminum alloys were also a matter of concern because of the thin oxide layer formation on the surface of alloys as this oxide layer tends to thicken at higher temperatures. Friction stir welding process shows several advantages to weld aluminum alloys. In the present research the optimization of the mechanical properties of welded joint of aluminum alloy of 6000 series are considered. This aluminium alloy series is used for architectural fabrication due to good surface finish, high corrosion resistance and good mechanical properties. The aluminium alloys 6063 and 6101 are successfully welded with friction stir welding technique. Two different rotation speeds of tool 1600 rpm and 1200 rpm and two different pin profiles tools square & hexagonal are selected for this work. From the results it is observed that the joint welded with hexagonal pin profile at 1200 rpm tool rotation speed gives superior mechanical properties.
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21

Mrówka-Nowotnik, Grazyna, and Jan Sieniawski. "Analysis of Intermetallic Phases in 2024 Aluminium Alloy." Solid State Phenomena 197 (February 2013): 238–43. http://dx.doi.org/10.4028/www.scientific.net/ssp.197.238.

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The main objective of this study was to analyze the evolution of the microstructure (morphology, composition and distribution of intermetallic phases) in the 2024 aluminium alloy cooled with different cooling rates after solidification process. A few techniques: optical light microscopy (LM), scanning (SEM) electron microscopy combined with an energy dispersive X-ray microanalysis (EDS), X-ray diffraction (XRD) were used to identify intermetallics in the examined alloy. The results show that the microstructure of 2024 aluminum alloys in as-cast condition consisted following intermetallic phases: Al2Cu, Al2CuMg, Al7Cu2Fe, Al4Cu2Mg8Si7, AlCuFeMnSi and Mg2Si.
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22

Petre, Marin, Cristian Dinu, Nicuşor Constantin Drăghici, and Valeriu Andrei. "Prediction of the residual stress after quenching of 6061 aluminium alloy plates by using mathematical modelling." ITM Web of Conferences 34 (2020): 02007. http://dx.doi.org/10.1051/itmconf/20203402007.

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The purpose of this article is to better understand the behavior of the residual stresses in aluminium alloy plates by using mathematical modelling. Quenching of aluminium alloy plates causes an uneven temperature variation in aluminum alloy plates, and elastic and elasto-plastic deformations occur inside the material. The latter causing the formation of deformations and residual stresses. The non-linear thermo-mechanical direct coupled analysis of the quenching process for a 6061 aluminium alloy plate was achieved by using ANSYS finite element software. The residual stresses due to solid thermal effects were determined by calculation of the Third principal stresses, the most negative or compressive. The developed mathematical model offers a support in the understanding the behavior of the residual stresses in aluminium alloy plates and a better control of them.
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23

Michalik, Rafał, and Tomasz Mikuszewski. "The Influence of Addition of the Rare Earth Elements on the Structure and Hardness of AlZn12Mg3.5Cu2.5 Alloy." Solid State Phenomena 226 (January 2015): 39–42. http://dx.doi.org/10.4028/www.scientific.net/ssp.226.39.

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Aluminium alloys are characterized by a number of advantageous properties , which include: low density ,high relative strength , high electrical and thermal conductivity , ease of machining and good dumping features. Particular interesting are high-strength aluminum alloys of zinc, magnesium and copper. These alloys are used mainly in aircraft, building &structure, electrical, electrical power and automotive industry. A significant problem associated with the use of high-strength aluminium-zinc alloys is their insufficient resistance to corrosion. Improvement of corrosion resistance can be obtained by application of alloy micro-additives. The article shows results of examinations related to influence of rare earth additive on the structure and hardness of AlZn12Mg3.5Cu2.5 alloy. The scope of examination included: structure testing using scanning microscope, X – ray microanalysis, hardness test. Examinations have shown higher hardness of samples with rare earth additives. Was found , that rare earth addition influences on more fine –grained structure of the AlZn12Mg3.5Cu2.5 alloy.
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Li, Wanpeng, Jian Mao, and Jie Feng. "Aluminium grain refinement by Ti(C, N) nanoparticles additions: principles, advantages and drawbacks." Metallurgical Research & Technology 116, no. 2 (2019): 212. http://dx.doi.org/10.1051/metal/2018083.

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Ti(C, N) is a ceramic particle with high melting point, high hardness, high thermal and chemical stability. And incorporated Ti(C, N) particles is demonstrated to refine the grain and improve the mechanical properties of aluminium and its alloys. In this article, effects of the addition amount of Ti(C, N) particles on grain refinement and mechanical properties of aluminium alloy are reviewed, and the mechanisms of aluminium alloy refined by Ti(C, N) are described. In addition, due to the poor wettability of Ti(C, N) nanoparticles with aluminium alloy melt and the large specific surface area of Ti(C, N) nanoparticles, the Ti(C, N) nanoparticles are prone to aggregate in molten aluminium, which severely limits the application of Ti(C, N) in aluminium alloy. And effective approaches to improving the wettability of Ti(C, N) nanoparticles refine aluminium alloys are provided.
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O. Ajibola, Olawale, and Peter A.Olubambi. "Comparative effects of corrosion on electroless -nickel plated A6061 alloys in DOT3 brake fluid." International Journal of Engineering & Technology 7, no. 2 (June 5, 2018): 927. http://dx.doi.org/10.14419/ijet.v7i2.9612.

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Aluminium alloys used in automobile brake master cylinder pistons wear by corrosion due to contamination and chemical reaction of the contacting brake fluid. The study investigates the corrosion of electroless-nickel (EN) deposition enhanced cast aluminium alloy master cylinder piston surfaces immersed in hydraulic brake oil. Cast specimens were produced from the as-received wrought A6061 alloy scrap by sand casting. EN plated as-received and cast aluminium alloys specimens were immersed fully in brake oil for 1680 hours and corrosion rates were determined every 24 hours. Test samples were characterised using the hardness tester, atomic absorption spectrometer, metallurgical photo-microscope, x-ray diffractometer; and SEM with EDX attachment. Both surfaces corroded in the order of electroless-nickel plated cast aluminium alloy (ENCA) < electroless-nickel plated as-received aluminium alloy (ENAA) at 0.0235 and 0.0251 rates (mg/mm2/y) results which showed improvement in the corrosion resistance with significant influence of electroless-nickel coating in reducing corrosion rates of aluminium alloy in brake oil.
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26

Kumar, Rajendra. "Aluminium Alloy Conductors." Key Engineering Materials 8 (January 1985): 127–38. http://dx.doi.org/10.4028/www.scientific.net/kem.8.127.

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27

Agbenyega, Jonathan. "New aluminium alloy." Materials Today 13, no. 10 (October 2010): 13. http://dx.doi.org/10.1016/s1369-7021(10)70180-2.

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28

Davies, G. A. O. "Aluminium alloy structures." Computer Methods in Applied Mechanics and Engineering 54, no. 3 (March 1986): 357–58. http://dx.doi.org/10.1016/0045-7825(86)90111-8.

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29

Nethercot, D. A. "Aluminium alloy structures." Engineering Structures 8, no. 4 (October 1986): 287. http://dx.doi.org/10.1016/0141-0296(86)90041-6.

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30

Roelandts, Iwan. "Aluminium and aluminium alloy reference materials." Spectrochimica Acta Part B: Atomic Spectroscopy 46, no. 6-7 (January 1991): 1101–19. http://dx.doi.org/10.1016/0584-8547(91)80106-d.

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31

Abe, Y., T. Kato, and Kenichiro Mori. "Aluminium Alloy Self-Pierce Riveting for Joining of Aluminium Alloy Sheets." Key Engineering Materials 410-411 (March 2009): 79–86. http://dx.doi.org/10.4028/www.scientific.net/kem.410-411.79.

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To simplify the recycling of automobiles, aluminium alloy sheets were joined by means of a self-piercing rivet. Although steel rivets used in conventional self-pierce riveting are removed from the aluminium alloy sheets in recycling, the removal is not required for aluminium alloy rivets. The joined sheets with the rivets are directly melted due to the same material, aluminium. For the joining of aluminium alloy sheet by the aluminium rivets, the joinability was improved by the designed shape of the rivet and die. To pierce the upper sheet, the diameter and edge angle of the rivet are modified. The diameter of the depth and the cavity of the die were also designed from trial and error using finite element simulation. The effectiveness of the designed rivet and die were evaluated from an experiment on riveting. The aluminium alloy sheets were joined by the optimised aluminium alloy self-piercing rivet and their effectiveness measured.
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32

Smyrak, Beata, Tadeusz Knych, Andrzej Mamala, Piotr Uliasz, and Michał Jabłoński. "A Study of a New Generation of Multi-Functional Aluminium Alloys for the Power Industry." Materials Science Forum 690 (June 2011): 439–42. http://dx.doi.org/10.4028/www.scientific.net/msf.690.439.

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This paper discusses the most current issues of overhead power transmission relative to the development of new conductive materials with unconventional technological and operational qualities. The present condition is based on the one hand on the traditional aluminium-steel conductors with their numerous weaknesses, and on the other hand on state of the art design solutions employing self-supporting, highly-conductive, and thermally and rheologically resistant aluminium alloys. A gap exists between pure aluminium-based conductors which are no longer sufficient and conductors made of precipitation hardened aluminium alloys, which even though they allow to achieve perfect properties, they are not sufficiently cost-effective as for their complex manufacturing technologies. For these reasons, light and sufficiently strong materials based on aluminium are needed, which enable simplified technologies for processing into conductors. Non-precipitation hardened aluminium alloys with such alloy additives as Fe, Si, Cu, Mg, Ti, B, and rare earth metals are preferred in this area. An appropriate composition of these elements, as well as manufacturing and alloy production technology (casting, rolling and drawing) create potential opportunities to obtain wires and conductors with application properties required by electrical power engineering. This paper thoroughly analyses the impact of various elements on the formation of mechanical and electrical properties of aluminium alloys.
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33

Vicen, M., P. Fabian, and E. Tillová. "Self-Hardening AlZn10Si8Mg Aluminium Alloy as an Alternative Replacement for AlSi7Mg0.3 Aluminium Alloy." Archives of Foundry Engineering 17, no. 3 (September 1, 2017): 139–42. http://dx.doi.org/10.1515/afe-2017-0106.

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Abstract This article deals with the fatigue properties of newly used AlZn10Si8Mg aluminium alloy where the main aim was to determine the fatigue strength and compare it with the fatigue strength of AlSi7Mg0.3 secondary aluminium alloys which is used in the automotive industry for cyclically loaded components. AlZn10Si8Mg aluminium alloy, also called UNIFONT 90, is self-hardening (without heat treatments), which contributes to economic efficiency. This is one of the main reasons why is compared, and may be an alternative replacement for AlSi7Mg0.3 alloy which is heat treated to achieve required mechanical properties. The experiment results show that the fatigue properties of AlZn10Si8Mg alloy are comparable, if not better, than AlSi7Mg0.3 alloy. Fatigue properties of AlZn10Si8Mg alloy are achieved after seven days of natural ageing, immediately after casting and achieving value of fatigue strength is caused by structural components formed during solidification of the melt.
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34

Adil, H., F. Audebert, F. Saporiti, S. Gerguri, F. Bonatesta, and J. F. Durodola. "Microstructure and Mechanical Properties of an Al-Mg-Si-Cu Alloy for High Temperature Applications." Material Science Research India 20, no. 3 (January 15, 2024): 154–66. http://dx.doi.org/10.13005/msri/200303.

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ABSTRACT: The high specific properties of aluminium based nanostructured alloys have attracted significant attention due to their promise for structural applications especially at elevated temperatures such as pistons for internal combustion engines. Several types of aluminium-based nanostructured alloys have been developed with microstructures of nanometre-sized particles embedded in the aluminium matrix. In this work a newly developed aluminium based nanostructured alloy is studied to understand its microstructure formation, stability and mechanical properties at elevated temperatures. The microstructure was characterised by means of X-ray diffraction, light and scanning electron microscopies. Heat treatments were carried out to determine the T6 condition properties and the microstructural stability at elevated temperatures for long periods of exposure. The hardness of the new alloy at T6 was 30% higher than the corresponding to Al-4032 which is the commonly used alloy for piston application. The work also compared the mechanical properties of the new alloy with two conventional aluminium alloys used in piston applications. The new alloy has 1.3–4.7 times higher strengths than Al-4032.
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Bangash, Muhammad, Graziano Ubertalli, Davide Di Saverio, Monica Ferraris, and Niu Jitai. "Joining of Aluminium Alloy Sheets to Aluminium Alloy Foam Using Metal Glasses." Metals 8, no. 8 (August 6, 2018): 614. http://dx.doi.org/10.3390/met8080614.

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Aluminium alloy foam is a lightweight material with high energy absorption properties and can potentially replace bulk Al-components. The aim of this work is to develop a brazing technique to join aluminium facing sheets to aluminium alloy foam to obtain aluminium foam sandwich panels for applications where high service temperature is a requirement. Al-6016 alloy sheets were brazed to aluminium alloy foam using two aluminium based (Al-Cu-Mg and Al-Si-Mg-Ti) metal glasses at 560 °C–590 °C in an argon atmosphere. Microstructure and microhardness profiles of the aluminium alloy sheet/aluminium alloy foam brazed joints were analysed using a microhardness tester and scanning electron microscope equipped with electron dispersion spectroscopy. A three-point bending test was conducted to study the flexural behaviour of the aluminium foam sandwich composite panels.
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36

Yu, Zhong Qi, Zhong Qin Lin, and Yu Ying Yang. "Prediction of Fracture in Square-Cup Forming of Aluminium Alloy." Materials Science Forum 546-549 (May 2007): 703–6. http://dx.doi.org/10.4028/www.scientific.net/msf.546-549.703.

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Aluminum alloy sheet is becoming one of the main materials to take the place of steel components to reduce the vehicle mass due to the advantage of low special density, high strength and corrosion resistance. To predict the formability during the aluminium alloy sheet forming accurately, , a ductile fracture criterion developed by the authors, was for numerical simulation, in this paper. Fracture behavior in square-cup forming of the aluminium alloy LF21M was predicted by means of the criterion. Comparison of the predicted results with experimental values shows that the critical punch stroke and the fracture initiation position in square-cup forming of the aluminium alloy have been predicted successfully by the criterion.
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37

Khalid, Inzamam. "A Brief Review on the Electrical Resistivity Of Aluminium Alloy and its Nanoparticles at Low Temperature." Computational And Experimental Research In Materials And Renewable Energy 5, no. 2 (November 11, 2022): 133. http://dx.doi.org/10.19184/cerimre.v5i2.33637.

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The objective of this review article is to study the resistivity of aluminium alloy at low temperatures. Various articles have been thoroughly studied for this review. Alloys that contain Al as dominant metal are termed as Al alloys. The first conventional Al alloy was prepared A6160 whose major constituents are Si and Mg. Al metal in its pure form has very high electrical conductivity but it is soft. Foils and conductor cables are made of Al. For advanced applications, Al is alloyed. The review has briefly explained the physical background of electrical resistivity and analysis of chosen material, aluminium alloy. Furthermore it has also discussed the resistivity of nanoparticles of Aluminium alloy.Keywords: Aluminium alloys, electrical resistivity, temperature, impurity.
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38

Higginson, R. L., H. Chang, and Jon Binner. "Microstructures of Alumina-Aluminium/Magnesium Interpenetrating Composites." Materials Science Forum 519-521 (July 2006): 1279–84. http://dx.doi.org/10.4028/www.scientific.net/msf.519-521.1279.

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Interpenetrating composites allow a completely 3-dimensional matrix of two phases, in this case an alumina (ceramic) and aluminium-magnesium alloy (metal), to be developed. This 3-dimensionality yields a material with mechanical and physical properties that are superior to either the metal or ceramic individually. The composites were produced by heating an alumina foam and aluminium-magnesium alloys together in flowing nitrogen to in excess of 900°C. At these temperatures the alloy is drawn into the ceramic foam by capillary action. The infiltration process is dependent on the interaction of the alloy with the nitrogen atmosphere in the furnaces. This complex interaction and its affect on the microstructural development has been studied using Electron Backscatter Diffraction (EBSD) coupled with Energy Dispersive x-ray Spectroscopy (EDS).
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39

Paton, B. E., D. M. Kaleko, S. N. Kedrovsky, Yu N. Koval, I. V. Krivtsun, and V. N. Slepchenko. "Resistance welding of shape-memory copper-aluminium alloy." Paton Welding Journal 2015, no. 12 (December 28, 2015): 2–7. http://dx.doi.org/10.15407/tpwj2015.12.01.

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40

Kumar, Dr B. Vijaya, B. Srikanth, and B. Raju Ch Sandeep D. Indu. "Friction Stir Spot Welding of Aluminium Alloy AA6063." International Journal of Trend in Scientific Research and Development Volume-3, Issue-3 (April 30, 2019): 1291–94. http://dx.doi.org/10.31142/ijtsrd23316.

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41

Aishwarya, Patlolla, G. P. Vaisshnavi, Alluri Namitha reddy, and N. Sateesh. "Optimization Process Parameters in Testing of Wear properties of Aluminium Alloy 6082." E3S Web of Conferences 391 (2023): 01054. http://dx.doi.org/10.1051/e3sconf/202339101054.

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When the two materials are in contact in motion, wear rate of the materials taken an important role. Aluminium alloys used in many applications like automobile components, aerospace components, home appliances, machine tool components. Advanced aluminium alloys are used in aerospace components. In this project wear studies of advanced aluminium alloys are carried using pin-on-disc machine three processing parameters considered are Load, Time and Speed. Twenty seven samples ae been tested to find wear rate of aluminium alloys. A Taguchi method is applied to find optimization process parameters which are having minimum wear rate. Aluminium alloy 6082 has a medium strength and good corrosion resistance. It is the strongest alloy
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42

Kosov, Yaroslav Igorevich, and Vladimir Yuryevich Bazhin. "Preparation of Novel Al-Er Master Alloys in Chloride-Fluoride Melt." Materials Science Forum 918 (March 2018): 21–27. http://dx.doi.org/10.4028/www.scientific.net/msf.918.21.

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A novel Al-Er master alloy has been prepared through in situ metallothermic reactions of NaErF4 and aluminium melts. The compound NaErF4 is formed as a result of the interaction of NaF and ErF3 in the melt medium KCl. The metallothermic reactions produce erbium, which through low solubility in molten aluminium and forms intermetallic compound Al3Er. The microstructures of the Al-Er master alloy with different contents of the alloying metal has been investigated. The results showed that the Al-Er master alloy mainly consisted of phases of α-Al and Al3Er, that confirmed by the results of X-ray diffraction. Backscattered electron imaging of the Al-Er master alloy under a scanning electron microscope (SEM) revealed the presence of phase Al3Er, which crystallized in the eutectic composition [Al+Al3Er]. The observed microstructure is explained according to the eutectic reaction in an Al-Er phase diagram. The preparation of Al-Er master alloy by the metallothermic reduction method will allow to reduce energy consumption for master alloy production and to reduce the cost of aluminium alloys alloyed with Er through the novel master alloy.
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43

Hurtalová, Lenka, Eva Tillová, and Mária Chalupová. "Microstructural and Vickers Microhardness Evolution of Heat Treated Secondary Aluminium Cast Alloy." Key Engineering Materials 586 (September 2013): 137–40. http://dx.doi.org/10.4028/www.scientific.net/kem.586.137.

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Secondary aluminium alloys are made out of aluminium scrap and aluminium-processable waste by recycling. These alloys contain different alloying elements such as Al, Cu, Fe, Si and Mg that form intermetallic phases in aluminium matrix and influence on the microstructure, basic mechanical properties and microhardness evolution in aluminium cast alloy. As experimental material was used secondary aluminium cast alloy AlSi9Cu3. Material was subjected to heat treatment (age-hardening) consisting of a solution treatment at temperature 515 °C with holding time 4 hours, than water quenching at 40 °C and artificial aging by different temperature 130 °C, 150 °C and 170 °C with different holding time (2, 4, 8, 16 and 32 hours). The age-hardening led to changes in the morphology of structural components, but also leads to precipitation of finer hardening phases in the material substructure. As optimal age-hardening mode for secondary aluminium cast alloy AlSi9Cu3 was determined mode consisting of solution treatment at temperature 515 °C with holding time 4 hours and artificial aging at temperature 170 °C with holding time 16 hours. After this heat treatment cast alloy shows the best changes in microstructure and mechanical properties. These changes are comparable with changes by primary AlSi9Cu3 cast alloy.
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44

Joseph, Olufunmilayo Oluwabukola, and Micheal Olalekan Aluko. "Effect of Synthetic Materials in Reinforcement of Aluminium Matrix Composites." Materials Science Forum 1076 (December 8, 2022): 3–11. http://dx.doi.org/10.4028/p-o2816k.

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Aluminium matrix composite is a type of innovative technical material that have applications in aerospace, automotive, biotechnology, electronics, and a lot more. Non-metallic reinforcements can be injected into an aluminium alloy to provide advantages over base metal (Al) alloys. Better mechanical properties, improved microstructure, and corrosion resistance are the benefits that have been noticed upon reinforcements. The proportion of reinforcement, kind, size, and forms of aluminium matrix are all important factors in improving mechanical and tribological properties. Investigation in the creation of highly advanced tailored materials using liquid and solid-state processes and the impact it has on the properties and application are the subject of this work. The current research summarizes recent breakthroughs in aluminium-based composites and other particle reinforcement effects. The experiment findings revealed that strengthening the aluminum matrix with reinforcements increased mechanical properties and improves the microstructure. Also, stir casting was seen to be the most popular liquid metal approach because of its cost effectiveness and processing parameters which could easily be adjusted and monitored. It is concluded that aluminum matrix composites have greater mechanical characteristics, microstructure, and corrosion resistance than unreinforced aluminum alloys.
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45

Rahimi, Maral, Peter Fojan, Leonid Gurevich, and Alireza Afshari. "Aluminium Alloy 8011: Surface Characteristics." Applied Mechanics and Materials 719-720 (January 2015): 29–37. http://dx.doi.org/10.4028/www.scientific.net/amm.719-720.29.

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Aluminium alloys are the predominant materials in modern industries. Increased knowledge about the surface characteristics of bare aluminium can enhance the understanding about how to optimize the working conditions for the equipment involving aluminium parts. This work focusses on the properties of native surface of aluminium alloy 8011, which is the main construction material for the production of air-to-air heat exchanger fins. In this study, we address its water wettability, surface roughness and frost formation in different psychometric parameters. The contact angle measurements revealed that this aluminium alloy exhibits a relatively high contact angle of about 78 degree, i.e. is not wetted completely. AFM measurements revealed significant surface roughness of typical heat exchanger fins. The thickness of formed frost was studied in relation to the wettability, humidity and the cold surface temperature.
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46

Geanta, Victor, Ionelia Voiculescu, Ioan Milosan, Bogdan Istrate, and Ileana Mariana Mates. "Chemical Composition Influence on Microhardness, Microstructure and Phase Morphology of AlxCrFeCoNi High Entropy Alloys." Revista de Chimie 69, no. 4 (May 15, 2018): 798–801. http://dx.doi.org/10.37358/rc.18.4.6203.

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The AlCrFeCoNi high entropy alloy exhibits unexpected properties that can be obtained after mixing five different elements, which could not be obtained from any one independent element. The difference to conventional alloys is that these alloys may have, at the same time, both hardness and plasticity, can be used in severe impact applications. In order to study the influence of aluminum content on the microhardness and microstructure of the high entropy alloys AlxCrFeCoNi (x: atomic ratio, x= 0.2 to 2.0) nine types of samples were obtained as mini-sized ingots (50x15x9.5 mm and 40 g weight). The mini-ingots were obtained using arc melt casting process in a vacuum arc remelting device (VAR MRF ABJ 900). The influence of the chemical elements on the microstructure, phases morphology and microhardness of AlxCrFeCoNi system was studied. The results have confirmed that mechanical properties could be greatly adjusted by the chemical composition change. The main element that influences the microhardness of the analyzed system is aluminum, due to the formation of Al-Fe compounds with high hardness. Increasing the aluminum content in the alloy to values greater than 1.8 ... 2 at.% contribute to the increase of hardness and also to the embrittlement thereof. Other elements like Cr, Fe, Co and Ni can contribute to mitigate increasing the hardness of the alloy. The type of phases formed in high entropy alloy are dependent to the aluminum concentration. So, depending on of aluminium content, different phases are obtained, like FCC for low Al content, mixture of FCC and BCC for about 2.5 %Al and BCC for high Al content. The crystallite size depends on the chemical composition and increase with the aluminium content.
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47

HR, Bharath Gowda, Gangadhara CS, Nishanth CS, Sudeep A, Anusha G, Lokesh N, and Griyanna T. "Design and Failure Analysis of Piston." International Journal for Research in Applied Science and Engineering Technology 11, no. 5 (May 31, 2023): 3488–97. http://dx.doi.org/10.22214/ijraset.2023.52393.

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Abstract: A piston is a component of reciprocating engines. The purpose of piston is to transfer force from expanding gas in the cylinder to the crankshaft via a piston rod and a connecting rod. It is one of the most complex components of an automobile. In This project we are describes the structural analysis of five different aluminum alloy pistons, by using finite element method (FEM). The specifications used for designing the piston belong to four stroke single cylinder engine of Bajaj Pulsar 220cc. Modeling of various aluminium alloy piston are done using SOLID EDGE. Static structural, thermal and fatigue analysis is performed by using ANSYS WORKBENCH 2022 R1. The parameters used for the simulation are operating gas pressure, material properties of piston. The results predict the maximum stress and strain on different aluminium alloy pistons using FEA. The best aluminum alloy material is selected based on static structural, thermal and fatigue analysis. The analysis results are used to optimize piston geometry of best aluminum alloy.
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48

Ambroziak, Andrzej, Artur Lange, Wiesław Derlukiewicz, and Sylwia Mosińska. "Aluminium and aluminium alloy hard soldering technology." Welding International 26, no. 5 (May 2012): 330–34. http://dx.doi.org/10.1080/09507116.2011.581339.

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49

Georgantzia, Evangelia, and Mohammad M. Kashani. "Monotonic and cyclic behaviour of 6082‐T6 aluminium alloy." ce/papers 6, no. 3-4 (September 2023): 2220–25. http://dx.doi.org/10.1002/cepa.2315.

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AbstractOver the last few decades, the application of 6000 series aluminium alloys as structural material has been increased owing to their favourable properties. Many research studies on the monotonic behaviour have been reported, whilst the studies investigating the cyclic behaviour are quite limited. To address this gap, an experimental campaign is currently underway to investigate the nonlinear stress‐strain behaviour of 6000 series aluminium alloys. This paper presents and discusses preliminary experimental results on the stress‐strain behaviour of 6082‐T6 aluminium alloy under monotonic and cyclic loading. Particularly, tensile, and variable amplitude cyclic coupon tests are executed to determine the mechanical properties of 6082‐T6 aluminium alloy. The obtained failure modes as well as the monotonic and hysteretic curves are presented and discussed. It was found that at increased strain demands the examined aluminium alloy exhibited hardening behaviour without material degradation demonstrating its potential for structural application in earthquake prone areas. The experimental curves are also utilised to assess the accuracy of existing theoretical models for monotonic and cyclic envelope curves. Finally, the need for a constitutive model capable of predicting the hysteretic behaviour of 6,000 series aluminium alloys is highlighted.
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50

Chumakov, E., Irmantas Gadzevičius, S. Shukbarova, and Justinas Gargasas. "RESEARCH OF PRELIMINARY PLASTIC DEFORMATION VALUE INFLUENCE ON ARTIFICIAL AGEING DYNAMICS." Mokslas - Lietuvos ateitis 5, no. 6 (December 31, 2013): 651–54. http://dx.doi.org/10.3846/mla.2013.108.

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Product quality improvement in the machine manufacturing industryis tightly associated with the introduction of new materialsand technologies. Aluminium alloys are widely used in differentmachine production industries. This paper presents the researchresults of aluminium alloy AD31 (AW 6060). Aluminium alloy isa part of the group subject to deformation and artificial aging. Theintensity of the aging process occurring after the crystallizationdepends on various conditions such as volumetric temperaturegradient during crystallization, alloy overheat temperature, itsduration of exposure, dispensing, and crystallization.
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