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Journal articles on the topic 'Magnesium metal matrix nanocomposites'

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Author: Grafiati

Published: 10 December 2022

Last updated: 28 January 2023

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1

Parthiban, K., and Lakshmanan Poovazhgan. "Ultrasonication Assisted Fabrication of Aluminum and Magnesium Matrix Nanocomposites - A Review." Materials Science Forum 979 (March 2020): 63–67. http://dx.doi.org/10.4028/www.scientific.net/msf.979.63.

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Recent researches in the domain of casting confirmed that the mechanical properties of aluminum and magnesium based nanocomposites can be appreciably enhanced when ultrasonic cavitation assisted solidification processing is used. Ultrasonic cavitation assisted solidification processing is used for the manufacturing of aluminum and magnesium alloy based metal matrix nanocomposites reinforced with nanoceramic particles. In this solidification processing, formation of clusters have been minimized and the nanoreinforcements were distributed uniformly in aluminum and magnesium matrix nanocomposites. The ultrasonic assisted casting approach will manage the grain dimensions via minimizing agglomeration of nanoparticles in metal matrices. This paper opinions the properties and morphology of aluminum and magnesium based metal matrix nanocomposites fabricated through ultrasonic assisted casting process.

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2

Malaki, Massoud, Wenwu Xu, Ashish Kasar, Pradeep Menezes, Hajo Dieringa, Rajender Varma, and Manoj Gupta. "Advanced Metal Matrix Nanocomposites." Metals 9, no. 3 (March 15, 2019): 330. http://dx.doi.org/10.3390/met9030330.

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Lightweight high-strength metal matrix nano-composites (MMNCs) can be used in a wide variety of applications, e.g., aerospace, automotive, and biomedical engineering, owing to their sustainability, increased specific strength/stiffness, enhanced elevated temperature strength, improved wear, or corrosion resistance. A metallic matrix, commonly comprising of light aluminum or magnesium alloys, can be significantly strengthened even by very low weight fractions (~1 wt%) of well-dispersed nanoparticles. This review discusses the recent advancements in the fabrication of metal matrix nanocomposites starting with manufacturing routes and different nanoparticles, intricacies of the underlying physics, and the mechanisms of particle dispersion in a particle-metal composite system. Thereafter, the microstructural influences of the nanoparticles on the composite system are outlined and the theory of the strengthening mechanisms is also explained. Finally, microstructural, mechanical, and tribological properties of the selected MMNCs are discussed as well.

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3

Han, Guo Qiang, Wen Bo Du, Zhao Hui Wang, Ke Liu, Shu Bo Li, and Xian Du. "Effective Dispersion of CNTs to Fabricate CNT/Mg Nanocomposite." Materials Science Forum 816 (April 2015): 470–75. http://dx.doi.org/10.4028/www.scientific.net/msf.816.470.

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An effective dispersion process to cast CNT-reinforced in a concentrated magnesium alloy (AZ31) nanocomposite was investigated in this study. The metal magnesium powder was first coated with dispersed CNTs by wet process, followed by the fabricating of CNT/Mg precursor using mechanical briquetting and extrusion. The resultant precursor was then added into AZ31 alloy during the melting process. Finally, CNT/Mg nanocomposites with grain refinement matrix composite were fabricated in as-cast and as-extruded. Compared with the commercial AZ31 alloy, CNT/Mg nanocomposites exhibited higher yield strength of 270 MPa with an increase of 22.7%, which can be largely ascribed to the effective dispersion process of CNTs in the alloy matrix, and the elongation is no significant decrease.

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4

Lee, Han Joo, Jae Kyung Han, Byung Min Ahn, Megumi Kawasaki, and Terence G. Langdon. "Mechanical Behavior of a Metal Matrix Nanocomposite Synthesized by High-Pressure Torsion via Diffusion Bonding." Materials Science Forum 879 (November 2016): 1068–73. http://dx.doi.org/10.4028/www.scientific.net/msf.879.1068.

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High-pressure torsion (HPT) is one of the major severe plastic deformation (SPD) procedures where disk metals generally achieve exceptional grain refinement at ambient temperatures. HPT has been applied for the consolidation of metallic powders and bonding of machining chips whereas very limited reports examined the application of HPT for the fabrication of nanocomposites. An investigation was initiated to evaluate the potential for the formation of a metal matrix nanocomposite (MMNC) by processing two commercial metal disks of Al-1050 and ZK60 magnesium alloy through HPT at room temperature. Evolutions in microstructure and mechanical properties including hardness and plasticity were examined in the processed disks with increasing numbers of HPT turns up to 5. This study demonstrates the promising possibility for using HPT to fabricate a wide range of hybrid MMNCs from simple metals.

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5

De Cicco, Michael, Lih Sheng Turng, Xiao Chun Li, and John H. Perepezko. "Semi-Solid Casting of Metal Matrix Nanocomposites." Solid State Phenomena 116-117 (October 2006): 478–83. http://dx.doi.org/10.4028/www.scientific.net/ssp.116-117.478.

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Semi-solid casting (SSC) techniques have proven useful in the mass production of high integrity castings for the automotive and other industries. Recent research has shown metal matrix nanocomposite (MMNC) materials to have greatly improved properties in comparison to their base metals. However, current methods of MMNC production are costly and time consuming. Thus development of a process that combines the integrity and cost effectiveness of semi-solid casting with the property improvement of MMNCs would have the potential to greatly improve cast part quality available to engineers in a wide variety of industries. This paper presents a method of combining SSC with MMNC in a way that benefits from MMNCs’ tendency to naturally form the globular microstructure necessary for SSC. This method uses ultrasonically dispersed nanoparticles as nucleating agents to achieve globular primary grains such that fluidity is maintained even at high solid fractions. Once particle dispersion is achieved, the material needs no further processing to become a semi-solid slurry of globular primary grains as it cools. This quiescent method of slurry production, while still imposing some constraints on cooling rates, has a large process window making this process capable of industrial rates of throughput. It was found that the key factor to achieving globular microstructure is a sufficiently slow cooling rate at the onset of solidification such that particle-induced nucleation can occur. Once nucleation occurs, continued cooling is virtually unconstrained, with globular microstructure evident in quenched samples as well as samples cooled at rates as slow as 1 °C/min. This method was demonstrated in several material systems using zinc (Zn), aluminum (Al), and magnesium (Mg) alloys and nanoparticles of aluminum oxide (Al2O3), silicon carbide (SiC), and titanium oxide (TiO2). Additionally, several nucleation models are examined for applicability to nanoscale composites.

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6

Kumar, Dinesh, and Lalit Thakur. "Recent Studies on the Fabrication of Magnesium Based Metal Matrix Nano-Composites by Using Ultrasonic Stir Casting Technique - A Review." Materials Science Forum 969 (August 2019): 889–94. http://dx.doi.org/10.4028/www.scientific.net/msf.969.889.

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This paper presents the recent studies on the fabrication of magnesium based metal matrix nanocomposites (MMMC) by using ultrasonic assisted stir casting technique. The pure metal and alloys, due to their limited mechanical properties are not suitable for various engineering applications. It has been observed that the addition of suitable reinforcements into metallic matrix improves the specific strength, ultimate tensile strength, porosity and wear properties as compared to the conventional and monolithic engineering materials for aerospace and automotive applications. The effects of ultrasonic vibrations and the resulting uniform dispersion of reinforcements on the mechanical and tribological properties of magnesium based MMCs are specifically highlighted in this paper.

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7

Kousik Suraparaju, Subbarama, P. Venkatasreenivasula Reddy, P. Venkata Ramaiah, K. Dharma Reddy, and Sendhil Kumar Natarajan. "Optimization of Process Parameters in Drilling of Al6063 Reinforced with Magnesium Oxide Nano Particles." Advanced Science, Engineering and Medicine 12, no. 10 (October 1, 2020): 1303–8. http://dx.doi.org/10.1166/asem.2020.2583.

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Aluminum Nano Metal Matrix Composites are extensively utilized for high-performance operations such as branches of engineering and medicine due to their enhanced physical and mechanical properties compared to traditional metals and metal alloys. In this research, Al6063 alloy was reinforced with 15 nm sized Magnesium Oxide particles in different weight percentages. The development of Nano Metal Matrix Composites (NMMC) was completed through stir casting method at 750 °C temperature. The fabricated Nanocomposites were examined for the mechanical properties and impact of drilling parameters on chips and burr formation. The input parameters adopted for analysis were speed, feed, and material of the drill tool. The drill tools made of HSS & TiN coated HSS were utilized in the drilling of NMMC. The influence of process parameters on chips and burr formation were analyzed and optimized the process parameters for better output intended for this experimental environment through the Artificial Immune Algorithm technique.

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8

Dadkhah, Mehran, Abdollah Saboori, and Paolo Fino. "An Overview of the Recent Developments in Metal Matrix Nanocomposites Reinforced by Graphene." Materials 12, no. 17 (September 2, 2019): 2823. http://dx.doi.org/10.3390/ma12172823.

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Two-dimensional graphene plateletes with unique mechanical, electrical and thermo-physical properties could attract more attention for their employed as reinforcements in the production of new metal matrix nanocomposites (MMNCs), due to superior characteristics, such as being lightweight, high strength and high performance. Over the last years, due to the rapid advances of nanotechnology, increasing demand for the development of advanced MMNCs for various applications, such as structural engineering and functional device applications, has been generated. The purpose of this work is to review recent research into the development in the powder-based production, property characterization and application of magnesium, aluminum, copper, nickel, titanium and iron matrix nanocomposites reinforced with graphene. These include a comparison between the properties of graphene and another well-known carbonaceous reinforcement (carbon nanotube), following by powder-based processing strategies of MMNCs above, their mechanical and tribological properties and their electrical and thermal conductivities. The effects of graphene distribution in the metal matrices and the types of interfacial bonding are also discussed. Fundamentals and the structure–property relationship of such novel nanocomposites have also been discussed and reported.

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9

Abazari, Somayeh, Ali Shamsipur, Hamid Reza Bakhsheshi-Rad, Ahmad Fauzi Ismail, Safian Sharif, Mahmood Razzaghi, Seeram Ramakrishna, and Filippo Berto. "Carbon Nanotubes (CNTs)-Reinforced Magnesium-Based Matrix Composites: A Comprehensive Review." Materials 13, no. 19 (October 4, 2020): 4421. http://dx.doi.org/10.3390/ma13194421.

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In recent years considerable attention has been attracted to magnesium because of its light weight, high specific strength, and ease of recycling. Because of the growing demand for lightweight materials in aerospace, medical and automotive industries, magnesium-based metal matrix nanocomposites (MMNCs) reinforced with ceramic nanometer-sized particles, graphene nanoplatelets (GNPs) or carbon nanotubes (CNTs) were developed. CNTs have excellent material characteristics like low density, high tensile strength, high ratio of surface-to-volume, and high thermal conductivity that makes them attractive to use as reinforcements to fabricate high-performance, and high-strength metal-matrix composites (MMCs). Reinforcing magnesium (Mg) using small amounts of CNTs can improve the mechanical and physical properties in the fabricated lightweight and high-performance nanocomposite. Nevertheless, the incorporation of CNTs into a Mg-based matrix faces some challenges, and a uniform distribution is dependent on the parameters of the fabricating process. The characteristics of a CNTs reinforced composite are related to the uniform distribution, weight percent, and length of the CNTs, as well as the interfacial bonding and alignment between CNTs reinforcement and the Mg-based matrix. In this review article, the recent findings in the fabricating methods, characterization of the composite’s properties, and application of Mg-based composites reinforced with CNTs are studied. These include the strategies of fabricating CNT-reinforced Mg-based composites, mechanical responses, and corrosion behaviors. The present review aims to investigate and conclude the most relevant studies conducted in the field of Mg/CNTs composites. Strategies to conquer complicated challenges are suggested and potential fields of Mg/CNTs composites as upcoming structural material regarding functional requirements in aerospace, medical and automotive industries are particularly presented.

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10

Jia, X. Y., S. Y. Liu, F. P. Gao, Q. Y. Zhang, and W. Z. Li. "Magnesium matrix nanocomposites fabricated by ultrasonic assisted casting." International Journal of Cast Metals Research 22, no. 1-4 (August 2009): 196–99. http://dx.doi.org/10.1179/136404609x367704.

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11

Huang, Song-Jeng, Manas Sarkar, and Sathiyalingam Kannaiyan. "Microstructural Evaluation and Fracture Behavior of AZ31/Nb2O5 Metal Matrix Composite." Journal of Composites Science 6, no. 12 (December 14, 2022): 390. http://dx.doi.org/10.3390/jcs6120390.

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There have been remarkable improvements in the research field of magnesium over the last few decades, especially in the magnesium metal matrix composite in which micro and nanoparticles are used as reinforcement. The dispersion phase of nanoparticles shows a better microstructural morphology than pure magnesium. The magnesium metal matrix nanocomposite shows improved strength with a balance of plasticity as compared to the traditional magnesium metal matrix composite. In this research, Nb2O5 (0 wt.%, 3 wt.%, and 6 wt.%) nanoparticles were used to reinforce AZ31 with the stir casting method, followed by heat treatment, and finally, an investigation was conducted using microstructural analysis. Factors such as the degree of crystallinity, crystallite size, and dislocation density are affected by the concentration of Nb2O5 and heat treatment. With the compositional increase in Nb2O5 weight percentage, the grain size decreases up to 3% Nb2O5 and then increases gradually. The SEM image analysis showed a grain size reduction of up to 3% Nb2O5 and fracture morphology changed from basal slip to a mixture of basal slip and adiabatic shear band.

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12

Dieringa, Hajo. "Processing of Magnesium-Based Metal Matrix Nanocomposites by Ultrasound-Assisted Particle Dispersion: A Review." Metals 8, no. 6 (June 7, 2018): 431. http://dx.doi.org/10.3390/met8060431.

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13

Chelliah, Nagaraj M., Padaikathan Pambannan, and MK Surappa. "Effects of processing conditions on solidification characteristics and mechanical properties of in situ magnesium metal matrix composites derived from polysilazane precursor." Journal of Composite Materials 53, no. 26-27 (May 2, 2019): 3741–55. http://dx.doi.org/10.1177/0021998319846546.

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Polymer-derived in situ magnesium metal matrix composites (P-MMMCs) were fabricated by injecting a liquid or cross-linked polysilazane precursor into molten magnesium by a stir-casting method at two different melt temperatures of 700 and 800℃. Microstructural analysis reveals that the composites fabricated at 700℃ exhibit uni-modal grain size distribution having more or less columnar-shaped grain morphology. On the contrary, bi-modal grain size distribution with predominantly dendritic grain morphology occurs in the Mg matrix composites fabricated at 800℃. Such difference in grain morphology can be associated with variation in the availability of heterogeneous nucleation sites, and direction of heat flux during solidification. All of the fabricated composites were investigated for their solidification characteristics, microstructural evolution, micro/nano-hardness and compression properties. This article discusses the correlation between the processing parameters, microstructural evolution and mechanical properties of the as-cast in situ composites fabricated by liquid metallurgical route. Polymer-injection followed by in situ pyrolysis holds the potential of revolutionary processing technologies for producing castings of metal matrix nanocomposites, for example by bubbling the organic liquid with a carrier gas, e.g. nitrogen, into the molten metal by a Bessemer-like process.

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14

Fathi, M. H., M. Meratian, and M. Razavi. "Novel Magnesium-Nanofluorapatite Metal Matrix Nanocomposite with Improved Biodegradation Behavior." Journal of Biomedical Nanotechnology 7, no. 3 (June 1, 2011): 441–45. http://dx.doi.org/10.1166/jbn.2011.1310.

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15

Giannopoulou, Danai, Hajo Dieringa, and Jan Bohlen. "Influence of AlN Nanoparticle Addition on Microstructure and Mechanical Properties of Extruded Pure Magnesium and an Aluminum-Free Mg-Zn-Y Alloy." Metals 9, no. 6 (June 8, 2019): 667. http://dx.doi.org/10.3390/met9060667.

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A pure Mg and a ZW0303 alloy metal matrix nanocomposite reinforced with AlN nanoparticles were prepared assisted by mechanical stirring and sonication for deagglomeration of particles. The produced nanocomposites were investigated to determine the influence of the AlN nanoparticles during indirect extrusion on the microstructure and texture development, as well as the resulting hardness and mechanical properties. For pure Mg, grain refinement and hardness increase due to the addition of AlN were revealed in the as-cast and the extruded condition. For ZW0303, the same was found for the as-cast condition. However, contamination of the alloy with Al significantly changes the recrystallization behavior during extrusion. This is directly related to the removal of solute Y due to the formation of intermetallic particles. Particle and grain size effects were distinguished for this alloy.

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16

Ferguson, J. B., Fariba Sheykh-Jaberi, Chang-Soo Kim, Pradeep K. Rohatgi, and Kyu Cho. "On the strength and strain to failure in particle-reinforced magnesium metal-matrix nanocomposites (Mg MMNCs)." Materials Science and Engineering: A 558 (December 2012): 193–204. http://dx.doi.org/10.1016/j.msea.2012.07.111.

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17

Munir, Khurram, Cuie Wen, and Yuncang Li. "Graphene nanoplatelets-reinforced magnesium metal matrix nanocomposites with superior mechanical and corrosion performance for biomedical applications." Journal of Magnesium and Alloys 8, no. 1 (March 2020): 269–90. http://dx.doi.org/10.1016/j.jma.2019.12.002.

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18

Luo, Xi, Leigang Zhang, Xu He, Jinling Liu, Ke Zhao, and Linan An. "Heterogeneous magnesium matrix nanocomposites with high bending strength and fracture toughness." Journal of Alloys and Compounds 855 (February 2021): 157359. http://dx.doi.org/10.1016/j.jallcom.2020.157359.

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19

Kim, Chang-Soo, Il Sohn, Marjan Nezafati, J. B. Ferguson, Benjamin F. Schultz, Zahra Bajestani-Gohari, Pradeep K. Rohatgi, and Kyu Cho. "Prediction models for the yield strength of particle-reinforced unimodal pure magnesium (Mg) metal matrix nanocomposites (MMNCs)." Journal of Materials Science 48, no. 12 (February 23, 2013): 4191–204. http://dx.doi.org/10.1007/s10853-013-7232-x.

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20

Banerjee, Sudip, Suswagata Poria, Goutam Sutradhar, and Prasanta Sahoo. "Nanoindentation and Scratch Resistance Characteristics of AZ31–WC Nanocomposites." Journal of Molecular and Engineering Materials 07, no. 03n04 (September 2019): 1950007. http://dx.doi.org/10.1142/s2251237319500072.

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This work examines the effects of WC nanoparticles on nanohardness, elastic modulus and scratch-induced wear behavior of Mg-based metal matrix nanocomposites. Ultrasonic vibrator-equipped stir casting furnace is used to fabricate Mg–WC nanocomposites. Scanning electron microscopy (SEM), energy-dispersive X-ray analysis (EDAX) and X-ray diffraction (XRD) are employed to conduct the characterizations of base alloy and Mg–WC nanocomposites. Vickers microhardness tester is used to obtain the microhardness values of the fabricated materials. Nanoindentation tests are performed to find the effect of wt.% of WC on the mechanical properties, i.e., nanohardness and elastic modulus. Nanohardness and elastic modulus present nearly 122% and 169.37% increments, respectively, compared to the base alloy when only 2[Formula: see text]wt.% of WC is present as reinforcement. Scratch tests are performed to find the effects of wt.% of WC and applied load on the scratch-induced wear and coefficient of friction (CoF) of the base alloy and Mg–WC nanocomposites. Wear volume also decreases continuously with increase in the weight percentage of WC in magnesium alloy. The COFs of nanocomposites are almost constant but they are inclined to increase with the increase in wt.% of WC. Finally, SEM micrographs of scratch grooves are analyzed to find the wear mechanisms. Abrasive wear mechanism is found to be the dominant one regarding the scratch of Mg–WC nanocomposites.

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21

Giannopoulou, Danai, Jan Bohlen, Noomane Ben Khalifa, and Hajo Dieringa. "Influence of Extrusion Rate on Microstructure and Mechanical Properties of Magnesium Alloy AM60 and an AM60-Based Metal Matrix Nanocomposite." Nanomaterials 12, no. 15 (August 4, 2022): 2682. http://dx.doi.org/10.3390/nano12152682.

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Metal matrix nanocomposites are attracting attention because of their great potential for improved mechanical properties and possible functionalization. These hybrid materials are often produced by casting processes, but they can also develop their property profile after hot working, e.g., by forging or extrusion. In this study, a commercial cast magnesium alloy AM60 was enriched with 1 wt.% AlN nanoparticles and extruded into round bars with varied extrusion rates. The same process was carried out with unreinforced AM60 in order to determine the influences of the AlN nanoparticles in direct comparison. The influence of extrusion speed on the recrystallization behavior as well the effect of nanoparticles on the microstructure evolution and the particle-related strengthening are discussed and assessed with respect to the resulting mechanical performance.

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22

Saberi, Abbas, Hamid Reza Bakhsheshi-Rad, Ahmad Fauzi Ismail, Safian Sharif, Mahmood Razzaghi, Seeram Ramakrishna, and Filippo Berto. "The Effect of Co-Encapsulated GO-Cu Nanofillers on Mechanical Properties, Cell Response, and Antibacterial Activities of Mg-Zn Composite." Metals 12, no. 2 (January 22, 2022): 207. http://dx.doi.org/10.3390/met12020207.

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Magnesium-based composites have recently been studied as biodegradable materials for preparing orthopedic implants. In this article, the graphene oxide (GO) and GO-Cu nanosystem has been homogenously dispersed as a reinforcement in the matrix of Mg-Zn (MZ) alloy using the semi powder metallurgy (SPM) method, and subsequently, the composite has been successfully manufactured using the spark plasma sintering (SPS) process. GO and GO-Cu reinforced composite displayed a higher compressive strength (~55%) than the unreinforced Mg-Zn sample. GO and GO-Cu dual nanofillers presented a synergistic effect on enhancing the effectiveness of load transfer and crack deflection in the Mg-based matrix. Besides, the GO-Cu dual nanofillers displayed a synergistic influence on antibacterial activity through combining the capturing influences of GO nanosheets with the killing influences of Cu. However, electrochemical and in-vitro immersion evaluation showed that Cu-GO reinforcement had a slightly negative effect on the corrosion behavior of the Mg-Zn sample, but the incorporation of GO enhanced corrosion resistance of the composite. Moreover, MZ/GO and MZ/GO-Cu nanocomposites showed acceptable cytotoxicity to MG-63 cells and revealed a high potential for use as an orthopedic implant material. Based on the research results, MZ/GO-Cu nanocomposite could be used in bone tissue engineering applications.

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23

Issa, Hasan Kaser, Ali Maleki, Aboozar Taherizadeh, and Alireza Zargaran. "On the structure-properties relationship of amorphous and crystalline silica nanoparticles reinforced magnesium matrix nanocomposites." Journal of Alloys and Compounds 924 (November 2022): 166605. http://dx.doi.org/10.1016/j.jallcom.2022.166605.

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24

Zhang, Congyang, Zhirui Li, Yongsheng Ye, Youlu Yuan, Dong Fang, Haihua Wu, and Wenzhen Li. "Interaction of nanoparticles and dislocations with Mg17Al12 precipitates in n-SiCp/AZ91D magnesium matrix nanocomposites." Journal of Alloys and Compounds 815 (January 2020): 152416. http://dx.doi.org/10.1016/j.jallcom.2019.152416.

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25

Nie, Kaibo, Yachao Guo, Kunkun Deng, and Xinkai Kang. "High strength TiCp/Mg-Zn-Ca magnesium matrix nanocomposites with improved formability at low temperature." Journal of Alloys and Compounds 792 (July 2019): 267–78. http://dx.doi.org/10.1016/j.jallcom.2019.04.028.

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26

Gurau, Gheorghe, Carmela Gurau, Francisco Manuel Braz Fernandes, Petrica Alexandru, Vedamanickam Sampath, Mihaela Marin, and Bogdan Mihai Galbinasu. "Structural Characteristics of Multilayered Ni-Ti Nanocomposite Fabricated by High Speed High Pressure Torsion (HSHPT)." Metals 10, no. 12 (December 4, 2020): 1629. http://dx.doi.org/10.3390/met10121629.

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It is generally accepted that severe plastic deformation (SPD) has the ability to produce ultrafinegrained (UFG) and nanocrystalline materials in bulk. Recent developments in high pressure torsion (HPT) processes have led to the production of bimetallic composites using copper, aluminum or magnesium alloys. This article outlines a new approach to fabricate multilayered Ni-Ti nanocomposites by a patented SPD technique, namely, high speed high pressure torsion (HSHPT). The multilayered composite discs consist of Ni-Ti alloys of different composition: a shape memory alloy (SMA) Ti-rich, whose Mf > RT, and an SMA Ni-rich, whose Af < RT. The composites were designed to have 2 to 32 layers of both alloys. The layers were arranged in different sequences to improve the shape recovery on both heating and cooling of nickel-titanium alloys. The manufacturing process of Ni-Ti multilayers is explained in this work. The evolution of the microstructure was traced using optical, scanning electron and transmission electron microscopes. The effectiveness of the bonding of the multilayered composites was investigated. The shape memory characteristics and the martensitic transition of the nickel-titanium nanocomposites were studied by differential scanning calorimetry (DSC). This method opens up new possibilities for designing various layered metal-matrix composites achieving the best combination of shape memory, deformability and tensile strength.

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27

Mardi, Kumari Bimla, Amit Rai Dixit, Alokesh Pramanik, Pavol Hvizdos, Ashis Mallick, Akash Nag, and Sergej Hloch. "Surface Topography Analysis of Mg-Based Composites with Different Nanoparticle Contents Disintegrated Using Abrasive Water Jet." Materials 14, no. 19 (September 22, 2021): 5471. http://dx.doi.org/10.3390/ma14195471.

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This study investigated the effect of abrasive water jet kinematic parameters, such as jet traverse speed and water pressure, on the surface of magnesium-based metal matrix nanocomposites (Mg-MMNCs) reinforced with 50 nm (average particle size) Al2O3 particles at concentrations of 0.66 and 1.11 wt.%. The extent of grooving caused by abrasive particles and irregularities in the abrasive waterjet machined surface with respect to traverse speed (20, 40, 250 and 500 mm/min), abrasive flow rate (200 and 300 g/min) and water pressure (100 and 400 MPa) was investigated using surface topography measurements. The results helped to identify the mode of material disintegration during the process. The nanoindentation results show that material softening was decreased in nanocomposites with higher reinforcement content due to the presence of a sufficient amount of nanoparticles (1.11 wt.%), which protected the surface from damage. The values of selected surface roughness profile parameters—average roughness (Ra), maximum height of peak (Rp) and maximum depth of valleys (Rv)—reveal a comparatively smooth surface finish in composites reinforced with 1.11 wt.% at a traverse speed of 500 mm/min. Moreover, abrasive waterjet machining at high water pressure (400 MPa) produced better surface quality due to sufficient material removal and effective cleaning of debris from the machining zone as compared to a low water pressure (100 MPa), low traverse speed (5 mm/min) and low abrasive mass flow rate (200 g/min).

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Subramani, Murugan, Song-Jeng Huang, and Konstantin Borodianskiy. "Effect of WS2 Nanotubes on the Mechanical and Wear Behaviors of AZ31 Stir Casted Magnesium Metal Matrix Composites." Journal of Composites Science 6, no. 7 (June 21, 2022): 182. http://dx.doi.org/10.3390/jcs6070182.

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In this study, the AZ31 magnesium alloy was reinforced with tungsten disulfide (WS2) nanotubes to fabricate the nanocomposite using the stir casting method. The microstructural analysis, mechanical and wear behaviors were investigated with the effect of WS2 on the AZ31 alloy. Scanning electron microscopy (SEM) was used to conduct the microstructural analysis. The microstructures are revealed to incorporate the aluminum content with the WS2 nanotube, disclose the presence of the secondary phase, which was increased compared with the AZ31 alloy and was detected by energy dispersive spectroscopy (EDS). The mechanical properties of hardness and yield strength (YS) were significantly improved with the addition of WS2 nanotubes. This is mainly due to the strengthening mechanisms of Orowan, the coefficient of thermal expansion (CTE) mismatch and the load transfer mechanism. The theoretical YS was calculated and compared with the experimental results. However, the ultimate tensile strength (UTS) and the fracture strain were decreased with the addition of reinforcement which might be owing to the clustering of nanotubes. Finally, the wear behavior of the wear weight loss and depth of cut was investigated. This test revealed that the addition of WS2 nanotubes reduced the weight loss and depth of the material cutting that was mainly due to the presence of hard WS2 nanotubes.

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29

Ballóková, Beáta, Ladislav Falat, Viktor Puchý, Zuzana Molčanová, Michal Besterci, Róbert Džunda, Aqeel Abbas, and Song-Jeng Huang. "The Influence of Laser Surface Remelting on the Tribological Behavior of the ECAP-Processed AZ61 Mg Alloy and AZ61–Al2O3 Metal Matrix Composite." Materials 13, no. 12 (June 12, 2020): 2688. http://dx.doi.org/10.3390/ma13122688.

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This paper deals with the tribological study of the laser remelted surfaces of the ECAP-processed AZ61 magnesium alloy and AZ61–Al2O3 metal matrix composite with 10 wt.% addition of Al2O3 nanoparticles. The study included the experimental optimization of the laser surface remelting conditions for the investigated materials by employing a 400 W continual wave fiber laser source. Tribological tests were performed in a conventional “ball-on-disc” configuration with a ceramic ZrO2 ball under a 5 N normal load and a sliding speed of 100 mm/s. The results showed that both the incorporation of Al2O3 nanoparticles and the applied laser treatments led to recognizable improvements in the tribological properties of the studied AZ61–Al2O3 composites in comparison with the reference AZ61 alloy. Thus, the best improvement has been obtained for the laser modified AZ61–10 wt.% Al2O3 nanocomposite showing about a 48% decrease in the specific wear rate compared to the laser untreated AZ61 base material.

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Islam, Nabila Akmalita Khairul, Nayona Ega Wicaksana, and Anne Zulfia Syahrial. "Effect of Nano-Al₂O₃ on Characteristics of Aluminium A356 Matrix Composite Produced by Stir Casting Route." Materials Science Forum 1000 (July 2020): 160–66. http://dx.doi.org/10.4028/www.scientific.net/msf.1000.160.

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Aluminium Matrix Composites (AMCs) made by A356 as matrix and nanoAl2O3 as reinforced are widely used for high performance application because of light weight and alumina has good performance at high temperature. In this study, the nanoAl2O3 used varied from 0.1 vf-% to 1.2 vf-%, which subsequently determined the optimum point. In addition, the magnesium with 10% are added as a wetting agent between aluminium and nanoAl2O3 as reinforced. Stir casting process is carried out for 2 minutes and 4 minutes for the degassing process using argon gasses then pouring molten metal in to the mold at 800°C. The effect of nanoAl2O3 on the mechanical properties and microstructure of the composites was investigated. The result showed that the tensile strength decreased with the addition of nanoAl2O3 but the hardness increased. Increasing of hardness mainly caused by grain refinement, and particle strengthening which act as obstacles to the motion of dislocations. Addition of nanoAl2O3 as reinforced also tend to form microporosity and agglomeration which would decrease the tensile strength of composites. The optimum strength was reached by 0.5 %Vf nanoAl2O3 with the value of 140 MPa and hardness of 46 BHN which was supported by low porosity level. Keyword : Al A356, Al2O3, nanoComposite, Stir Casting

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Malakooti, Mohammad H., Michael R. Bockstaller, Krzysztof Matyjaszewski, and Carmel Majidi. "Liquid metal nanocomposites." Nanoscale Advances 2, no. 7 (2020): 2668–77. http://dx.doi.org/10.1039/d0na00148a.

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This is a progress report on liquid metal (LM) nanocomposites with focus on synthesis of LM nanodroplets, suspension of nanodroplets within various matrix materials, and methods for incorporating metallic nanoparticles within an LM matrix.

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Luo, Xi, Xu He, Jinling Liu, Xinxin Zhu, Song Jiang, Ke Zhao, and Linan An. "Damage behavior of heterogeneous magnesium matrix nanocomposites." MRS Communications 10, no. 2 (May 15, 2020): 359–64. http://dx.doi.org/10.1557/mrc.2020.35.

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Song, X., P. Bayati, M. Gupta, M. Elahinia, and M. Haghshenas. "Fracture of magnesium matrix nanocomposites - A review." International Journal of Lightweight Materials and Manufacture 4, no. 1 (March 2021): 67–98. http://dx.doi.org/10.1016/j.ijlmm.2020.07.002.

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Laurent, Ch, and A. Rousset. "Metal-Oxide Ceramic Matrix Nanocomposites." Key Engineering Materials 108-110 (July 1995): 405–6. http://dx.doi.org/10.4028/www.scientific.net/kem.108-110.405.

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Tolochko, N. K., A. A. Andrushevich, and Yu A. Shienok. "Fabrication of Metal Matrix Nanocomposites." Advanced Materials Research 79-82 (August 2009): 425–28. http://dx.doi.org/10.4028/www.scientific.net/amr.79-82.425.

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Novel semisolid casting technique allowing producing the cast composites with highly homogeneous structure is suggested. In according with this technique specially prepared metal bil-lets containing reinforcing nanoparticles are subjected to partial melting and compacting and fol-lowing solidifying. Some model systems were used in order to demonstrate the potential possibili-ties of this technique in principle.

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Banerjee, Sudip, Prasanta Sahoo, and J. Paulo Davim. "Tribological characterisation of magnesium matrix nanocomposites: A review." Advances in Mechanical Engineering 13, no. 4 (April 2021): 168781402110090. http://dx.doi.org/10.1177/16878140211009025.

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Magnesium matrix nanocomposites (Mg-MNCs) are high grade materials widely used in aerospace, electronics, biomedical and automotive sectors for high strength to weight ratio, excellent sustainability and superior mechanical and tribological characteristics. Basic properties of Mg-MNCs rely on type and amount of reinforcement and fabrication process. Current study reviews existing literatures to explore contribution of different parameters on tribological properties of Mg-MNCs. Effects of particle size and amount of different reinforcements like SiC, WC, Al2O3, TiB2, CNT, graphene nano platelets (GNP), graphite on tribological behaviour are discussed. Incorporation of nanoparticles generally enhances properties. Role of different fabrication processes like stir casting (SC), ultrasonic treatment casting (UST), disintegrated melt deposition (DMD), friction stir processing (FSP) on wear and friction behaviour of Mg-MNCs is also reviewed. Contributions of different tribological process parameters (sliding speed, load and sliding distance) on wear, friction and wear mechanism are also examined.

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Malaki, Massoud, Alireza Fadaei Tehrani, and Behzad Niroumand. "Fatgiue behavior of metal matrix nanocomposites." Ceramics International 46, no. 15 (October 2020): 23326–36. http://dx.doi.org/10.1016/j.ceramint.2020.06.246.

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Rudskoi, A. I. "Cu–C Metal Matrix Nanocomposites: Synthesis." Doklady Chemistry 493, no. 1 (July 2020): 108–11. http://dx.doi.org/10.1134/s0012500820370028.

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Saranu, Ravikumar, Ratnam Chanamala, and SrinivasaRao Putti. "Review of Magnesium Metal Matrix Composites." IOP Conference Series: Materials Science and Engineering 961 (November 10, 2020): 012001. http://dx.doi.org/10.1088/1757-899x/961/1/012001.

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Witte, Frank, Frank Feyerabend, Petra Maier, Jens Fischer, Michael Störmer, Carsten Blawert, Wolfgang Dietzel, and Norbert Hort. "Biodegradable magnesium–hydroxyapatite metal matrix composites." Biomaterials 28, no. 13 (May 2007): 2163–74. http://dx.doi.org/10.1016/j.biomaterials.2006.12.027.

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Liu, Shi Ying, Fei Peng Gao, Qiong Yuan Zhang, and Wen Zhen Li. "Mechanical Properties and Microstrutures of Nano-Sized SiC Particles Reinforced AZ91D Nanocomposites Fabricated by High Intensity Ultrasonic Assisted Casting." Materials Science Forum 618-619 (April 2009): 449–52. http://dx.doi.org/10.4028/www.scientific.net/msf.618-619.449.

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A high intensity ultrasonic assisted casting method was used to fabricate SiC nanoparticles reinforced magnesium matrix nanocomposites (n-SiCp/AZ91D). The microstructures and mechanical properties of the nanocomposites were investigated. The results show that n-SiCp are well dispersed in the matrix and the grain size was refined. A HRTEM study of the interface between n-SiCp and the matrix suggests that SiC bonds well with matrix without forming an intermediate phase. With the lower addition of n-SiCp, the mechanical properties of nanocomposites are greatly improved. As compared to an unreinforced magnesium alloy matrix, the tensile and yield strength were improved by 43.6% and 117% respectively.

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Porter, Quinton, Xiaochun Li, and Chao Ma. "Pressing and Infiltration of Metal Matrix Nanocomposites." Journal of Manufacturing and Materials Processing 5, no. 2 (May 28, 2021): 54. http://dx.doi.org/10.3390/jmmp5020054.

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The ability to produce metal matrix nanocomposites via pressing and infiltration was validated. Al/TiC nanocomposite was used as the model material. Pressing the powder in a die yielded cylindrical specimens with a green density of 1.98 ± 0.05 g/cm3, which was increased to only 2.11 ± 0.12 g/cm3 by sintering. Direct infiltration of the pressed specimens at 1050 °C for 3.5 h yielded specimens with a density of 3.07 ± 0.08 g/cm3, an open porosity of 3.06 ± 1.40%, and an areal void fraction of 8.09 ± 2.67%. The TiC nanoparticles were verified to be well dispersed using energy-dispersive X-ray spectroscopy. The measured hardness of 64 ± 3 HRA makes it a promising material for structural applications in industries such as aerospace and automotive.

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Hu, Z., G. Tong, D. Lin, C. Chen, H. Guo, J. Xu, and L. Zhou. "Graphene-reinforced metal matrix nanocomposites – a review." Materials Science and Technology 32, no. 9 (January 19, 2016): 930–53. http://dx.doi.org/10.1080/02670836.2015.1104018.

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Li, Xiaochun, Yong Yang, and Xudong Cheng. "Ultrasonic-assisted fabrication of metal matrix nanocomposites." Journal of Materials Science 39, no. 9 (May 2004): 3211–12. http://dx.doi.org/10.1023/b:jmsc.0000025862.23609.6f.

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Hassan, S. F., and M. Gupta. "Development and Characterization of Ductile Mg∕Y2O3 Nanocomposites." Journal of Engineering Materials and Technology 129, no. 3 (January 11, 2007): 462–67. http://dx.doi.org/10.1115/1.2744418.

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Nano-Y2O3 particulates containing ductile magnesium nanocomposites were synthesized using blend-press-sinter powder metallurgy technique followed by hot extrusion. Microstructural characterization of the nanocomposite samples showed fairly uniform reinforcement distribution, good reinforcement-matrix interfacial integrity, significant grain refinement of magnesium matrix with increasing presence of reinforcement, and the presence of minimal porosity. Mechanical properties characterization revealed that the presence of nano-Y2O3 reinforcement leads to marginal increases in hardness, 0.2% yield strength and ultimate tensile strength, but a significant increase in ductility and work of fracture of magnesium. The fracture mode was changed from brittle for pure Mg to mix ductile and intergranular in the case of nanocomposites.

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Ponappa, Kannayiram, Sivanandam Aravindan, and P. Venkateswara Rao. "Grinding of magnesium /Y2O3 metal matrix composites." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 226, no. 10 (August 16, 2012): 1675–83. http://dx.doi.org/10.1177/0954405412454792.

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47

Hall, I. W. "Corrosion of carbon/magnesium metal matrix composites." Scripta Metallurgica 21, no. 12 (December 1987): 1717–21. http://dx.doi.org/10.1016/0036-9748(87)90164-5.

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48

ASADI, P., M. K. BESHARATI GIVI, and G. FARAJI. "PRODUCING NANOCOMPOSITE LAYER ON THE SURFACE OF AS-CAST AZ91 MAGNESIUM ALLOY BY FRICTION STIR PROCESSING." International Journal of Modern Physics: Conference Series 05 (January 2012): 375–82. http://dx.doi.org/10.1142/s2010194512002255.

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Friction stir processing (FSP) is an effective tool to produce a surface composite layer with enhanced mechanical properties and modified microstructure of as-cast and sheet metals. In the present work, the mechanical and microstructural properties of as-cast AZ 91 magnesium alloy were enhanced by FSP and an AZ 91/ SiC surface nanocomposite layer has been produced using 30 nm SiC particles. Effect of the FSP pass number on the microstructure, grain size, microhardness, and powder distributing pattern of the surface developed has been investigated. The developed surface nanocomposite layer presents a higher hardness, an ultra fine grain size and a better homogeneity. Results show that, increasing the number of FSP passes enhances distribution of nano-sized SiC particles in the AZ 91 matrix, decreases the grain size, and increases the hardness significantly. Also, changing of the tool rotating direction results much uniform distribution of the SiC particles, finer grains, and a little higher hardness.

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Abdalla, Moataz, Austin Sims, Sherif Mehanny, Meysam Haghshenas, Manoj Gupta, and Hamdy Ibrahim. "In Vitro Electrochemical Corrosion Assessment of Magnesium Nanocomposites Reinforced with Samarium(III) Oxide and Silicon Dioxide Nanoparticles." Journal of Composites Science 6, no. 6 (May 25, 2022): 154. http://dx.doi.org/10.3390/jcs6060154.

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Recent research on biodegradable magnesium-based implants has been focusing on increasing their mechanical strength and controlling their corrosion rate. One promising approach to significantly improve the mechanical properties of magnesium is the addition of nanoparticles to the magnesium matrix. However, there is limited research on the corrosion behavior of these new magnesium nanocomposites. In this study, the electrochemical corrosion characteristics of this new class of biomaterials are investigated. Two magnesium nanocomposites reinforced with nanoparticles (0.5, 1.0, and 1.5 Vol%) of samarium oxide (Sm2O3), and silicon dioxide (SiO2), were fabricated and tested. Corrosion behavior was assessed in comparison with high-purity magnesium samples as the control group. The addition of the nanoparticles to the magnesium matrix strengthened the materials, which was represented in an increase in the microhardness. However, the fabricated nanocomposite samples exhibited a slightly reduced corrosion resistance compared to the high-purity magnesium control due to the differences in the purity level and fabrication methods. Both nanocomposites showed the highest corrosion resistance, represented in the slowest corrosion rates, at the 1.0 Vol% content. Hence, the developed nanocomposites are still promising candidates as biodegradable materials for bone-fixation application owing to their superior mechanical properties and acceptable corrosion characteristics.

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Nie, K. B., X. J. Wang, K. Wu, X. S. Hu, and M. Y. Zheng. "Development of SiCp/AZ91 magnesium matrix nanocomposites using ultrasonic vibration." Materials Science and Engineering: A 540 (April 2012): 123–29. http://dx.doi.org/10.1016/j.msea.2012.01.112.

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