Journal articles: 'Ti6Al4V joining'

1

Wang, Haipeng, Yang Chen, Zaoyang Guo, and Yingchun Guan. "Porosity Elimination in Modified Direct Laser Joining of Ti6Al4V and Thermoplastics Composites." Applied Sciences 9, no. 3 (January 26, 2019): 411. http://dx.doi.org/10.3390/app9030411.

Full text

Abstract:

Hybrid lightweight components with strong and reliable bonding qualities are necessary for practical applications including in the automotive and aerospace industries. The direct laser joining method has been used to produce hybrid joints of Ti6Al4V and glass fiber reinforced polyamide (PA66-GF30). Prior to the laser joining process, a surface texturing treatment is carried out on Ti6Al4V to improve joint strength through the formation of interlock structures between Ti6Al4V and PA66-GF30. In order to reduce the generated micro-pores in Ti6Al4V-PA66-GF30 joints, a modified laser joining method has been proposed. Results show that only very few small micro-pores are generated in the joints produced by the modified laser joining method, and the fracture strength of the joints is significantly increased from 13.8 MPa to 41.5 MPa due to the elimination of micro-pores in the joints.

APA, Harvard, Vancouver, ISO, and other styles

2

Tamang, Siddharth, Nitish Kumar, and S. Aravindan. "Effect of Gold Nano Dots in Microwave Brazing: A Novel Approach to Join Ti6Al4V to MACOR^®." Key Engineering Materials 821 (September 2019): 222–28. http://dx.doi.org/10.4028/www.scientific.net/kem.821.222.

Full text

Abstract:

Nano structured surface generation is useful in inducing specific functionalities to the surface. This work attempts on generation of such surface through thermal dewetting. Enhanced adhesion behavior of such surface is utilized for joining MACOR® ceramic to Ti6Al4V alloy. Ti6Al4V alloy is brazed with MACOR® by microwave energy using TiCuSil as a braze alloy. MACOR® ceramic is subjected to pre-treatment called gold dewetting. For comparison plain ceramic is also used for joining. The reaction zone formed on joining Ti6Al4V to gold dewetted MACOR® is more uniform than the untreated MACOR® ceramic interface. Energy Dispersive Spectroscopy (EDS) analysis of the reaction zone suggests the formation of Ti2Cu and Ti3Au intermetallic compounds. The shear strength of the pre-treated samples is observed to be higher than that of plain joints.

APA, Harvard, Vancouver, ISO, and other styles

3

Silva, Marcionilo, Ana Sofia Ramos, Maria Teresa Vieira, and Sónia Simões. "Joining of Ti6Al4V to Al2O3 Using Nanomultilayers." Nanomaterials 12, no. 4 (February 21, 2022): 706. http://dx.doi.org/10.3390/nano12040706.

Full text

Abstract:

Diffusion bonding of Ti6Al4V to Al2O3 using Ni/Ti reactive nanomultilayers as interlayer material was investigated. For this purpose, Ni/Ti multilayer thin films with 12, 25, and 60 nm modulation periods (bilayer thickness) were deposited by d.c. magnetron sputtering onto the base materials’ surface. The joints were processed at 750 and 800 °C with a dwell time of 60 min and under a pressure of 5 MPa. Microstructural characterization of the interfaces was conducted by scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy (EDS), and electron backscatter diffraction (EBSD). The mechanical characterization of the joints was performed by nanoindentation, and hardness and reduced Young’s modulus distribution maps were obtained across the interfaces. The joints processed at 800 °C using the three modulation periods were successful, showing the feasibility of using these nanolayered films to improve the diffusion bonding of dissimilar materials. Using modulation periods of 25 and 60 nm, it was also possible to reduce the bonding temperature to 750 °C and obtain a sound interface. The interfaces are mainly composed of NiTi and NiTi2 phases. The nanoindentation experiments revealed that the hardness and reduced Young’s modulus at the interfaces reflect the observed microstructure.

APA, Harvard, Vancouver, ISO, and other styles

4

He, Dai Hua, Qian Zhao, Chang Bao Wang, Hao Zhang, Xiao Run Zhang, Ping Liu, and Xin Kuan Liu. "Sol-Gel Derived Gradient Biocoatings on Titanium Alloy." Applied Mechanics and Materials 80-81 (July 2011): 426–30. http://dx.doi.org/10.4028/www.scientific.net/amm.80-81.426.

Full text

Abstract:

The bioceramic hydroxyapaptie (HA) is frequently used as coat in titanium medical implants improving bone fixation and thus increasing a lifetime of the implant. However, its joining to the titanium alloy is not satisfactorily good. The aim of this work is to produce TiO2and HA gradient coatings on Ti6Al4V alloy to improve the interface joining. Compared the microstructures of cross section of Ti6Al4V-HA coating and Ti6Al4V-TiO2/HA gradient coatings. HA coatings were obtained by sol-gel method with sol solutions prepared from calcium nitrate tetrahydrate and triethyl phosphate as the calcium and phosphorous sources. And TiO2 coatings were obtained from Tetra Butyl Titanate and absolute ethyl alcohol as the sources by sol-gel method too. The configuration and structure were investigated with scanning electron microscopy (SEM) and X-ray diffraction (XRD) techniques. The results demonstrated that the TiO2/HA gradient coatings have a homogeneous microstructure. The TiO2coating made the HA coating adhere to the Ti-6Al-4V substrate well.

APA, Harvard, Vancouver, ISO, and other styles

5

Gadakh, Vijay S., Vishvesh J. Badheka, and Amrut S. Mulay. "Solid-state joining of aluminum to titanium: A review." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 235, no. 8 (May 22, 2021): 1757–99. http://dx.doi.org/10.1177/14644207211010839.

Full text

Abstract:

The dissimilar material joining of aluminum and titanium alloys is recognized as a challenge due to the significant differences in the physical, chemical, and metallurgical properties of these alloys, where the increasing demands for high strength and lightweight alloys in aerospace, defense, and automotive industries. Joining these two alloys using the conventional fusion techniques produces commercially unacceptable sound joints due to irregular, complex weld pool shapes, cracking and low strength, high residual stresses, cracks, and microporosity, and the brittle intermetallic compounds formation leads to poor formability or inferior mechanical properties. The formation of intermetallic compounds is inevitable but it is less severe in solid-state than in the fusion welding process. Hence, this article reviews on aluminum–titanium joining using different solid-state and hybrid joining processes with emphasis on the effect of process parameters of the different processes on the weld microstructure, mechanical properties along with the type of intermetallic compounds and defects formed at the weld interface. Among the various solid-state welding processes for aluminum–titanium joining, the following grades of aluminum and titanium alloys were employed such as cp Ti, Ti6Al4V, cp Al, AA1xxx, AA 2xxx, AA5xxx, AA6xxx, AA7xxx, out of which Ti6Al4V and AA6xxx alloys are the most common combination.

APA, Harvard, Vancouver, ISO, and other styles

6

Xu, Ying, Hengchang Bu, Feiyun Wang, Wanping Ma, and Xiaohong Zhan. "Numerical simulation and experimental investigation of laser joining Ti6Al4V alloy and CFRTP with embedded Ti6Al4V alloy." Optics & Laser Technology 156 (December 2022): 108433. http://dx.doi.org/10.1016/j.optlastec.2022.108433.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Silva, Marcionilo, Ana S. Ramos, and Sónia Simões. "Joining Ti6Al4V to Alumina by Diffusion Bonding Using Titanium Interlayers." Metals 11, no. 11 (October 29, 2021): 1728. http://dx.doi.org/10.3390/met11111728.

Full text

Abstract:

This work aims to investigate the joining of Ti6Al4V alloy to alumina by diffusion bonding using titanium interlayers: thin films (1 µm) and commercial titanium foils (5 µm). The Ti thin films were deposited by magnetron sputtering onto alumina. The joints were processed at 900, 950, and 1000 °C, dwell time of 10 and 60 min, under contact pressure. Experiments without interlayer were performed for comparison purposes. Microstructural characterization of the interfaces was conducted by optical microscopy (OM), scanning electron microscopy (SEM) with energy dispersive X-ray spectroscopy (EDS), and electron backscatter diffraction (EBSD). The mechanical characterization of the joints was performed by nanoindentation to obtain hardness and reduced Young’s modulus distribution maps and shear strength tests. Joints processed without interlayer have only been achieved at 1000 °C. Conversely, joints processed using Ti thin films as interlayer showed promising results at temperatures of 950 °C for 60 min and 1000 °C for 10 and 60 min, under low pressure. The Ti adhesion to the alumina is a critical aspect of the diffusion bonding process and the joints produced with Ti freestanding foils were unsuccessful. The nanoindentation results revealed that the interfaces show hardness and reduced Young modulus, which reflect the observed microstructure. The average shear strength values are similar for all joints tested (52 ± 14 MPa for the joint processed without interlayer and 49 ± 25 MPa for the joint processed with interlayer), which confirms that the use of the Ti thin film improves the diffusion bonding of the Ti6Al4V alloy to alumina, enabling a decrease in the joining temperature and time.

APA, Harvard, Vancouver, ISO, and other styles

8

Valenza, F., C. Artini, A. Passerone, P. Cirillo, and M. L. Muolo. "Joining of ZrB2 Ceramics to Ti6Al4V by Ni-Based Interlayers." Journal of Materials Engineering and Performance 23, no. 5 (January 24, 2014): 1555–60. http://dx.doi.org/10.1007/s11665-014-0868-0.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Duan, Yu, Yangwu Mao, Zhemi Xu, Quanrong Deng, Geming Wang, and Shenggao Wang. "Joining of Graphite to Ti6Al4V Alloy Using Cu‐Based Fillers." Advanced Engineering Materials 21, no. 11 (September 17, 2019): 1900719. http://dx.doi.org/10.1002/adem.201900719.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Oliveira, J. P., B. Panton, Z. Zeng, C. M. Andrei, Y. Zhou, R. M. Miranda, and F. M. Braz Fernandes. "Laser joining of NiTi to Ti6Al4V using a Niobium interlayer." Acta Materialia 105 (February 2016): 9–15. http://dx.doi.org/10.1016/j.actamat.2015.12.021.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Simões, Sónia, Omid Emadinia, Carlos José Tavares, and Aníbal Guedes. "Joining of Zirconia to Ti6Al4V Using Ag-Cu Sputter-Coated Ti Brazing Filler." Metals 12, no. 2 (February 20, 2022): 358. http://dx.doi.org/10.3390/met12020358.

Full text

Abstract:

The joining of zirconia (ZrO2) to Ti6Al4V using Ag-Cu sputter-coated Ti brazing filler foil was investigated. Brazing experiments were performed at 900, 950, and 980 °C for 30 min under vacuum. The microstructural features of the brazed interfaces were evaluated by optical microscopy (OM) and by scanning electron microscopy (SEM). The chemical composition of the brazed interfaces was analyzed by energy dispersive X-ray spectroscopy (EDS). Room temperature shear tests and Vickers microhardness tests performed across the interfaces were used to evaluate the mechanical strength of the joints. Multilayered interfaces were produced for all brazing temperatures, consisting essentially in α-Ti + Ti2(Ag, Cu), TiAg. Joining to ZrO2 was promoted by the formation of a hard layer, reaching a maximum of 1715 HV0.01, possibly consisting mainly in α-Ti and Ti oxide(s). Joining to the Ti6Al4V was established by a layer composed of a mixture of α-Ti and Ti2(Ag, Cu). The highest shear strength (152 ± 4 MPa) was obtained for brazing at 980 °C and fracture of joints occurred partially across the interface, throughout the hardest layers formed close to ZrO2, and partially across the ceramic sample.

APA, Harvard, Vancouver, ISO, and other styles

12

Wang, Haipeng, Zhongjing Ren, and Yingchun Guan. "Laser Joining of Continuous Carbon Fiber-Reinforced PEEK and Titanium Alloy with High Strength." Polymers 14, no. 21 (November 2, 2022): 4676. http://dx.doi.org/10.3390/polym14214676.

Full text

Abstract:

The generation of high-performance heterojunctions between high-strength resin matrix composites and metals is of great significance for lightweight applications in fields such as aerospace and automobile engineering. Herein, we explored the feasibility of employing a laser joining process to achieve high-strength heterojunctions between continuous carbon fiber-reinforced PEEK (CCF30/PEEK) composites and titanium alloy (Ti6Al4V). A joint strength of over 50 MPa was achieved through constructing mechanical interlocking structures between CCF30/PEEK and Ti6Al4V. Tensile tests revealed that the fracture of joints was mainly ascribed to the detachment of carbon fibers from the resin matrix and the breakage of carbon fibers. The structures with different orientations and dimensions were confirmed to significantly influence the formation of interlocking structures near the joining interface and the resultant fracture strength of joints. It is believed that the results presented in this study provide a strong foundation for the production of high-performance heterojunctions.

APA, Harvard, Vancouver, ISO, and other styles

13

Liesegang, Moritz, Yuan Yu, Tilmann Beck, and Frank Balle. "Sonotrodes for Ultrasonic Welding of Titanium/CFRP-Joints—Materials Selection and Design." Journal of Manufacturing and Materials Processing 5, no. 2 (June 12, 2021): 61. http://dx.doi.org/10.3390/jmmp5020061.

Full text

Abstract:

Ultrasonic welding of titanium alloy Ti6Al4V to carbon fibre reinforced polymer (CFRP) at 20 kHz frequency requires suitable welding tools, so called sonotrodes. The basic function of ultrasonic welding sonotrodes is to oscillate with displacement amplitudes typically up to 50 µm at frequencies close to the eigenfrequency of the oscillation unit. Material properties, the geometry of the sonotrode, and the sonotrode tip topography together determine the longevity of the sonotrode. Durable sonotrodes for ultrasonic welding of high-strength joining partners, e.g., titanium alloys, have not been investigated so far. In this paper, finite element simulations were used to establish a suitable design assuring the oscillation of a longitudinal eigenmode at the operation frequency of the welding machine and to calculate local mechanical stresses. The primary aim of this work is to design a sonotrode that can be used to join high-strength materials such as Ti6Al4V by ultrasonic welding considering the longevity of the welding tools and high-strength joints. Material, sonotrode geometry, and sonotrode tip topography were designed and investigated experimentally to identify the most promising sonotrode design for continuous ultrasonic welding of Ti6AlV4 and CFRP. Eigenfrequency and modal shape were measured in order to examine the reliability of the calculations and to compare the performance of all investigated sonotrodes.

APA, Harvard, Vancouver, ISO, and other styles

14

Simões, Sónia, Filomena Viana, Ana Ramos, M. Vieira, and Manuel Vieira. "Microstructural Characterization of Dissimilar Titanium Alloys Joints Using Ni/Al Nanolayers." Metals 8, no. 9 (September 12, 2018): 715. http://dx.doi.org/10.3390/met8090715.

Full text

Abstract:

This study demonstrates the potential of the use of Ni/Al nanolayers for joining dissimilar titanium alloys. For this purpose, a detailed microstructural characterization of the diffusion bonding interfaces of TiAl to Ti6Al4V, TiAl to TiNi and TiNi to Ti6Al4V was carried out. The nanolayers (alternated aluminum and nickel (Ni-7V wt.%) layers) were deposited onto the base material surfaces. Diffusion bonding was performed at 700 and 800 °C under pressures ranging from 5 to 40 MPa and at dwell times between 60 and 180 min. Microstructural characterization was performed using high resolution transmission and scanning electron microscopies. The results revealed that dissimilar titanium joints (TiAl to Ti6Al4V, TiAl to TiNi and TiNi to Ti6Al4V) assisted by Ni/Al nanolayers can be obtained successfully at 800 °C for 60 min using a pressure of 20 MPa. The bond interfaces are thin (less than 10 µm) and mainly composed of NiAl grains with a few nanometric grains of Al8V5. Thin layers of Al-Ni-Ti intermetallic compounds were formed adjacent to the base materials due to their reaction with the nanolayers.

APA, Harvard, Vancouver, ISO, and other styles

15

Emadinia, Omid, Aníbal Guedes, Carlos José Tavares, and Sónia Simões. "Joining Alumina to Titanium Alloys Using Ag-Cu Sputter-Coated Ti Brazing Filler." Materials 13, no. 21 (October 28, 2020): 4802. http://dx.doi.org/10.3390/ma13214802.

Full text

Abstract:

The joining of alumina (Al2O3) to γ-TiAl and Ti6Al4V alloys, using Ag-Cu sputter-coated Ti brazing filler foil, was investigated. Brazing experiments were performed at 980 °C for 30 min in vacuum. The microstructure and chemical composition of the brazed interfaces were analyzed by scanning electron microscopy and by energy dispersive X-ray spectroscopy, respectively. A microstructural characterization of joints revealed that sound multilayered interfaces were produced using this novel brazing filler. Both interfaces are composed mainly of α-Ti, along with Ti2(Ag,Cu) and TiAg intermetallics. In the case of the brazing of γ-TiAl alloys, α2-Ti3Al and γ-TiAl intermetallics are also detected at the interface. Bonding to Al2O3 is promoted by the formation of a quite hard Ti-rich layer, which may reach a hardness up to 1872 HV 0.01 and is possibly composed of a mixture of α-Ti and Ti oxides. Hardness distribution maps indicate that no segregation of either soft or brittle phases occurs at the central regions of the interfaces or near the base Ti alloys. In addition, a smooth hardness transition was established between the interface of Al2O3 to either γ-TiAl or Ti6Al4V alloys.

APA, Harvard, Vancouver, ISO, and other styles

16

Xue, Xin, António Pereira, Gabriela Vincze, Xinyong Wu, and Juan Liao. "Interfacial Characteristics of Dissimilar Ti6Al4V/AA6060 Lap Joint by Pulsed Nd:YAG Laser Welding." Metals 9, no. 1 (January 12, 2019): 71. http://dx.doi.org/10.3390/met9010071.

Full text

Abstract:

This paper focuses on the interfacial characteristics of dissimilar Ti6Al4V/AA6060 lap joint produced by pulsed Nd:YAG laser beam welding. The process-sensitivity analysis of welding-induced interface joining quality was performed by using the orthogonal design method. Microstructural tests such as scanning electron microscopy and energy dispersive X-ray spectroscopy were used to observe the interfacial characteristics. The mechanism of interfacial crack initiation, which is an important indicator of joint property and performance, was assessed and analyzed. The preferred propagation paths of welding cracks along the interfaces of different intermetallic layers with high dislocation density were analyzed and discussed in-depth. The results indicate that discontinuous potential phases in the micro-crack tip would mitigate the mechanical resistance or performance of the welded joint, while the continuous intermetallic layer can lead to a sound jointing performance under pulsed Nd:YAG laser welding process.

APA, Harvard, Vancouver, ISO, and other styles

17

Zhou, Xingwen, Yuhua Chen, Shuhan Li, Yongde Huang, Kun Hao, and Peng Peng. "Friction Stir Spot Welding-Brazing of Al and Hot-Dip Aluminized Ti Alloy with Zn Interlayer." Metals 8, no. 11 (November 8, 2018): 922. http://dx.doi.org/10.3390/met8110922.

Full text

Abstract:

Friction stir spot welding (FSSW) of Al to Ti alloys has broad applications in the aerospace and automobile industries, while its narrow joining area limits the improvement of mechanical properties of the joint. In the current study, an Al-coating was prepared on Ti6Al4V alloy by hot-dipping prior to joining, then a Zn interlayer was used during friction stir joining of as-coated Ti alloy to the 2014-Al alloy in a lap configuration to introduce a brazing zone out of the stir zone to increase the joining area. The microstructure of the joint was investigated, and the joint strength was compared with the traditional FSSW joint to confirm the advantages of this new process. Because of the increase of the joining area, the maximum fracture load of such joint is 110% higher than that of the traditional FSSW joint under the same welding parameters. The fracture load of these joints depends on the joining width, including the width of solid-state bonding region in stir zone and brazing region out of stir zone.

APA, Harvard, Vancouver, ISO, and other styles

18

Omoniyi, Peter, Rasheedat Mahamood, Nana Arthur, Sisa Pityana, Samuel Skhosane, Yasuhiro Okamoto, Togo Shinonaga, Martin Maina, Tien-Chien Jen, and Esther Akinlabi. "Laser Butt Welding of Thin Ti6Al4V Sheets: Effects of Welding Parameters." Journal of Composites Science 5, no. 9 (September 14, 2021): 246. http://dx.doi.org/10.3390/jcs5090246.

Full text

Abstract:

Titanium and its alloys, particularly Ti6Al4V, which is widely utilized in the marine and aerospace industries, have played a vital role in different manufacturing industries. An efficient and cost-effective way of joining this metal is by laser welding. The effect of laser power and welding speed on the tensile, microhardness, and microstructure of Ti6Al4V alloy is investigated in this paper. Results show that the microhardness is highest at the fusion zone and reduces towards the base metal. The microstructure at the fusion zone shows a transformed needle-like lamellar α phase, with a martensitic α’ phase observed within the heat affected zone. Results of tensile tests show an improved tensile strength compared to the base metal.

APA, Harvard, Vancouver, ISO, and other styles

19

Zhou, Xingwen, Yongde Huang, Yuhua Chen, and Peng Peng. "Laser joining of Mo and Ta sheets with Ti6Al4V or Ni filler." Optics & Laser Technology 106 (October 2018): 487–94. http://dx.doi.org/10.1016/j.optlastec.2018.05.004.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Wang, Jianhong, Jun Cheng, Peikang Bai, and Yuxin Li. "Investigation of joining Al–C–Ti cermets and Ti6Al4V by combustion synthesis." Materials Science and Engineering: B 177, no. 19 (November 2012): 1703–6. http://dx.doi.org/10.1016/j.mseb.2011.12.041.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Kolařík, Ladislav, Marie Kolaříková, and Petr Vondrouš. "Mechanical Properties of Interface of Heterogeneous Diffusion Welds of Titanium and Austenitic Steel." Key Engineering Materials 586 (September 2013): 178–81. http://dx.doi.org/10.4028/www.scientific.net/kem.586.178.

Full text

Abstract:

Titanium is material which is used in many areas of human activity. Therefore it is necessary to join it with other material. It is very difficult to welding Ti with other metals by conventional fusion welding methods. There exist special joining technologies of heterogeneous materials which is possible to use. This is usually a joining of materials in the solid state, as diffusion welding, friction welding or explosion welding. This contribution deals with diffusion welding of titanium alloy Ti6Al4V and stainless austenitic steel 1.4301. There are described mechanical properties (as is reduced modulus Er and indentation hardness HIT) and changes of chemical composition of join due to diffusion of elements.

APA, Harvard, Vancouver, ISO, and other styles

22

Peng, Yong, Zheng Yi Fu, Wei Min Wang, H. Wang, Yu Cheng Wang, Jin Yong Zhang, and Qing Jie Zhang. "Joining TiB₂-Ni Cermets with Ti6Al4V by Pulse Current Heating." Key Engineering Materials 368-372 (February 2008): 1609–11. http://dx.doi.org/10.4028/www.scientific.net/kem.368-372.1609.

Full text

Abstract:

Pulse current heating technology is used to join TiB2-Ni cermets with Ti6Al4V at different temperatures (1023K, 1073K and 1123K) with 7MPa pressure and Cu foil and Ni foil are used as joining interlayer. Joint points increase with welding temperature. The microstructure of joints is observed through SEM images and micrographs. The diffusion coefficient (D0) of Cu at the Cu/TiB2 interface is calculated by the EPMA patterns. The diffusion principle of pulse current heating and influences of electric field and current on atom diffusion are studied.

APA, Harvard, Vancouver, ISO, and other styles

23

Corigliano, Pasqualino. "Non-linear finite element analysis of a Ti6Al4V/Inconel 625 joint obtained by explosion welding for sub-sea applications." Underwater Technology 38, no. 1 (March 30, 2021): 13–16. http://dx.doi.org/10.3723/ut.38.013.

Full text

Abstract:

Industries have shown interest in the use of dissimilar metals to make corrosion-resistant materials combined with good mechanical properties in marine environments. Explosive welding can be considered a good method for joining dissimilar materials to prevent galvanic corrosion. The aim of the present study was to simulate the non-linear behaviour of a Ti6Al4V/Inconel 625 welded joint obtained by explosion welding from the values of the tensile ultimate strength and yielding strength of the parent materials. The present study compared the stress-strain curve from tensile loading obtained by the non-linear finite element analysis with the experimental stress-strain curve of a bimetallic joint. The applied method provides useful information for the development of models and the prediction of the structural behaviour of Ti6Al4V/Inconel 625 explosive welded joints.

APA, Harvard, Vancouver, ISO, and other styles

24

Sulaiman H., A. J., M. H. Aiman, M. Ishak, M. M. Quazi, T. Zaharinie, and T. Ariga. "Vacuum brazing of titanium alloy to stainless steel enhance by fiber laser surface texturing." Journal of Mechanical Engineering and Sciences 15, no. 4 (December 15, 2021): 8601–7. http://dx.doi.org/10.15282/jmes.15.4.2021.12.0678.

Full text

Abstract:

A method for improving the brazing joining strength of Titanium alloy/Stainless steel fabricated through fibre laser surface texturing is introduced because it is a simple process that does not require the fabrication of complicated interlayers. However, previous research shows that a milimeter scale was fabricated by surface modification for dissimilar brazing join, yielding insignificant results and limiting the application and degree of enhancement. Fiber laser ablation was used in this study to create microscale periodic patterns (grooves) on a stainless steel surface. No defect or damage induced during laser surface texturing process. The groove dimension was tunable by controlling the laser parameters. Vacuum brazing of Ti6Al4V to 316L stainless steel with surface texturing, the average joint strength was 22.1 MPa, 34% of increase of joining strength compared to unprocessed flat surface. The combination of laser surface texturing and brazing proven effectively on joining strength enhancement.

APA, Harvard, Vancouver, ISO, and other styles

25

Xu, Ying, Xiaohong Zhan, Hongyan Yang, Hengchang Bu, and Feiyun Wang. "Comparative study on interface morphology and tensile property of CFRTP/Ti6Al4V laser joining joint under various groove dimensions." Journal of Polymer Engineering 41, no. 6 (May 12, 2021): 442–49. http://dx.doi.org/10.1515/polyeng-2021-0005.

Full text

Abstract:

Abstract Laser joining merges as a novel technique for the connection of carbon fiber reinforced thermoplastics composite (CFRTP) and metal. Besides, machining grooves on the metal surface presents a surface pre-treating method to enhance the strength of laser joining joint between CFRTP and metal. In this study, the laser joining of CFRTP and Ti6Al4V alloy is performed with different groove dimensions. The effect of groove dimension on interface morphology and failure load is analyzed. In addition, the formation mechanism of the interface and the fracture mode of the joint are further elucidated. The results indicate that the structurally sound connection and maximum failure load are attained with an appropriate groove dimension (groove width: 0.7 mm, groove depth: 0.25 mm, and aspect ratio: 0.36). At a narrower groove, the bubbles inside the resin caused by thermal decomposition of the matrix resin are obtained, while at a deeper groove, the gaps and holes are observed in the interface of the joint, both resulting in a lower failure load.

APA, Harvard, Vancouver, ISO, and other styles

26

Wanjara, Priti, Javad Gholipour, Kosuke Watanabe, Koji Nezaki, Y. Tian, and M. Brochu. "Linear Friction Welding of IN718 to Ti6Al4V." Materials Science Forum 879 (November 2016): 2072–77. http://dx.doi.org/10.4028/www.scientific.net/msf.879.2072.

Full text

Abstract:

Linear friction welding (LFW), an emerging automated technology, has potential for solid-state joining of dissimilar materials (bi-metals) to enable tailoring of the mechanical performance, whilst limiting the assembly weight for increased fuel efficiency. However, bi-metallic welds are quite difficult to manufacture, especially when the material combinations can lead to the formation of intermetallic (brittle) phases at the interface, such as the case with assembly of Ti base alloys with Ni base superalloys. The intermetallic phase, once formed, lowers the performance of the as-manufactured properties and its growth during elevated temperature service can lead to unreliable performance. In this project, it was demonstrated that linear friction welding can be applied to join Ti-6%Al-4%V (workhorse Ti alloy) to INCONEL® 718 (workhorse Ni-base superalloy) with minimized interaction at the interface. Of particular merit is that no intermediate layer (between the Ti alloy and Ni-base superalloy) was needed for bonding. Characterization of the bi-metallic weld included macro-and microstructural examination of the flash and interface regions and evaluation of the hardness.

APA, Harvard, Vancouver, ISO, and other styles

27

Topolski, Krzysztof, Zygmunt Szulc, and Halina Garbacz. "Microstructure and Properties of the Ti6Al4V/Inconel 625 Bimetal Obtained by Explosive Joining." Journal of Materials Engineering and Performance 25, no. 8 (April 29, 2016): 3231–37. http://dx.doi.org/10.1007/s11665-016-2080-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Shokati, Ali Akbar, Norman Y. Zhou, and John Z. Wen. "Dissimilar joining of carbon/carbon composites to Ti6Al4V using reactive resistance spot welding." Journal of Alloys and Compounds 772 (January 2019): 418–28. http://dx.doi.org/10.1016/j.jallcom.2018.09.018.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Gałka, A., and M. Najwer. "Explosive Cladding of Titanium and Aluminium Alloys on the Example of Ti6Al4V-AA2519 Joints / Wybuchowe Platerowanie Stopów Tytanu I Aluminium Na Przykładzie Połączenia Ti6Al4V-AA2519." Archives of Metallurgy and Materials 60, no. 4 (December 1, 2015): 2985–92. http://dx.doi.org/10.1515/amm-2015-0477.

Full text

Abstract:

Explosive cladding is currently one of the basic technologies of joining metals and their alloys. It enables manufacturing of the widest range of joints and in many cases there is no alternative solution. An example of such materials are clads that include light metals such as titanium and aluminum. ach new material combination requires an appropriate adaptation of the technology by choosing adequate explosives and tuning other cladding parameters. Technology enabling explosive cladding of Ti6Al4V titanium alloy and aluminum AA2519 was developed. The clads were tested by means of destructive and nondestructive testing, analyzing integrity, strength and quality of the obtained joint.

APA, Harvard, Vancouver, ISO, and other styles

30

Negemiya, Arun, Rajakumar Selvarajan, and Tushar Sonar. "Effect of diffusion bonding time on microstructure and mechanical properties of dissimilar Ti6Al4V titanium alloy and AISI 304 austenitic stainless steel joints." Materials Testing 65, no. 1 (January 1, 2023): 77–86. http://dx.doi.org/10.1515/mt-2022-0209.

Full text

Abstract:

Abstract The main objective of this investigation is to study the effect of diffusion bonding time on microstructure and mechanical properties of dissimilar Ti6Al4V titanium alloy and AISI 304 austenitic stainless steel joints. The dissimilar joints of Ti6Al4V titanium alloy and AISI 304 steel were developed using the different levels of bonding time (30, 45, 60, 75 and 90 min) in a vacuum chamber at a bonding temperature of 900 °C and compressive pressure of 14 MPa. The microstructure of joints was analyzed using optical microscopy (OM) and scanning electron microscopy (SEM). The elemental analysis of joint interface was studied using the SEM energy dispersive spectroscopy (EDS). The evolution of intermetallic compounds at the joint interface was analyzed using X-ray diffraction (XRD). The ram tensile tests and lap shear tests were performed to assess the bonding strength and lap shear strength of dissimilar joints. Results showed that the dissimilar joints of Ti6Al4V alloy–AISI 304 steel developed using the diffusion bonding time of 75 min showed higher lap shear strength of 151 MPa and bonding strength of 244 MPa due to the better coalescence of the joining surfaces and evolution of optimum width of diffusion region having minimum embrittlement effects.

APA, Harvard, Vancouver, ISO, and other styles

31

Mohan, H. S., T. P. Bharathesh, K. V. Sreenivas Rao, and Ravikumar Beeranur. "Laser Assisted Brazing of Ceramic and Titanium Alloy Using Cu-Ag Filler Material." Applied Mechanics and Materials 766-767 (June 2015): 751–56. http://dx.doi.org/10.4028/www.scientific.net/amm.766-767.751.

Full text

Abstract:

The joining of ceramic to structural alloys has received much attention in recent years because of its potentially attractive properties. In the present investigation alumina which is a ceramic has been brazed with titanium alloy (Ti6Al4V) using KM72(Ag/Cu) filler material.The study has been carried out using CO2laser gas in argon inert atmosphere. Uniformity of the brazed joints has been observed in scanning electron micrographs. The elements and phases present at the joint interface have been characterized by EDX and XRD spectra analysis. As per the experimental observation, the phases present in the Ti6Al4V/KM72/alumina joint are Cu3TiO4, Cu3Ti2,CuO, Ti2Cu, CuTi, and Cu4Ti3. The effect of brazing process parameters on the shear strength of the brazed joint has been studied and maximum shear strength observed at brazing power of 330 watts and speed 300 mm/min is 4±0.5MPa. Micro-hardness values of the brazed interface indicate that the interface is softer than the substrate.

APA, Harvard, Vancouver, ISO, and other styles

32

Bangash, Muhammad Kashif, Valentina Casalegno, Alok Kumar Das, Stefano De la Pierre des Ambrois, and Monica Ferraris. "Surface machining of Ti6Al4V by means of Micro-Electrical Discharging to improve adhesive joining." Journal of Materials Processing Technology 286 (December 2020): 116813. http://dx.doi.org/10.1016/j.jmatprotec.2020.116813.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Alhajhamoud, Mohamad, Sayit Ozbey, Mehmet Alp Ilgaz, Levent Candan, Ibrahim Cinar, Mario Vukotić, Selma Čorović, Damijan Miljavec, and Ersin Kayahan. "Laser Welding of Ti6Al4V Titanium Alloy in Air and a Water Medium." Materials 15, no. 24 (December 19, 2022): 9088. http://dx.doi.org/10.3390/ma15249088.

Full text

Abstract:

Ti6Al4V titanium alloys are widely used in a variety of scientific and industrial fields. Laser beam welding is one of the most effective techniques for the joining of titanium plates. The main objective of this study was to investigate the influence of the most important laser parameters on welding performance of titanium alloy in two different physical environments such as air and water (i.e., serum) media. Specifically, the laser beam welding of 2 mm thick Ti6Al4V samples was applied using an Nd:YAG laser in open-air welding using argon as a shielding gas, and in wet welding using a serum environment. The deepest penetration was achieved at −3 mm focal position with 11 J of laser energy in both investigated media (i.e., air and serum). The maximum hardness (1130 HV) was achieved for the focal position of −4 mm in serum medium while it was 795 HV for a focal position of −5 mm in air medium. The minimum (1200 μm and 800 μm) and maximum (1960 μm and 1900 μm) weld widths were observed for air and serum medium, respectively. After the welding process, martensite, massif martensite, and transformed martensite were observed in the microstructure of Ti6Al4V. To the best of our knowledge, the underwater wet welding of titanium alloy was carried out and reported for the first time in this study.

APA, Harvard, Vancouver, ISO, and other styles

34

Quintino, L., L. Liu, A. Hu, R. M. Miranda, and Y. Zhou. "Fracture analysis of Ag nanobrazing of NiTi to Ti alloy." Soldagem & Inspeção 18, no. 3 (September 2013): 281–86. http://dx.doi.org/10.1590/s0104-92242013000300010.

Full text

Abstract:

Dissimilar joining of shape memory alloys to Ti alloys has long been attempted by several research groups due to the foreseen potential industrial applications. However, the very dissimilar thermo-physical properties of both materials place several difficulties. Brazing can be a solution since the base materials are subjected to a less sharp thermal cycle. In the present study brazed overlap joints of 1 mm thick plates of equiatomic NiTi and Ti6Al4V were produced using nano silver based filler materials. Surfaces were analyzed to assess the type of fracture and the capability of achieving bonding and involved mechanisms are discussed.

APA, Harvard, Vancouver, ISO, and other styles

35

Gao, Yanan, Lujun Huang, Yang Bao, Qi An, Yuan Sun, Rui Zhang, Lin Geng, and Jie Zhang. "Joints of TiBw/Ti6Al4V composites- Inconel 718 alloys dissimilar joining using Nb and Cu interlayers." Journal of Alloys and Compounds 822 (May 2020): 153559. http://dx.doi.org/10.1016/j.jallcom.2019.153559.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Song, Xinrui, Hejun Li, Valentina Casalegno, Milena Salvo, Monica Ferraris, and Xierong Zeng. "In situ TiC particle reinforced TiCuZrNi brazing alloy for joining C/C composites to Ti6Al4V." International Journal of Applied Ceramic Technology 15, no. 3 (January 23, 2018): 611–18. http://dx.doi.org/10.1111/ijac.12863.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Telli, M. B. "Joining of Soda Lime Silicate Glass TO TI6AL4V Alloy in Air by Controlled Heat Treatments." Acta Physica Polonica A 127, no. 4 (April 2015): 972–75. http://dx.doi.org/10.12693/aphyspola.127.972.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Lacki, Piotr, and Konrad Adamus. "Numerical Simulation of Welding Thin Titanium Sheets." Key Engineering Materials 549 (April 2013): 407–14. http://dx.doi.org/10.4028/www.scientific.net/kem.549.407.

Full text

Abstract:

Different titanium grades are used in aircraft construction because of titaniums unique properties. These materials are mostly joined by different welding methods. Electron beam welding technology is often used in the aircraft industry to join structural elements made of titanium alloys. The goal of the work is a numerical analysis of the electron beam welding process applied to joining thin titanium sheets. The analysis was performed using finite element method, FEM. Temperature distribution, size of heat affected zone (HAZ), depth and width of fusion zone were determined for the assumed heat source model. Thermo-mechanical (TMC) simulation of the electron beam welding process using FEM is presented in the paper. The joining of two sheets, one made of commercially pure titanium Grade 2 and the other made of titanium alloy Grade 5 (Ti6Al4V), is analysed in the work. For the sheet welding process distributions of temperature, effective stress, and sheet deformation were calculated.

APA, Harvard, Vancouver, ISO, and other styles

39

Kalaiselvan, K., A. Elango, N. M. Nagarajan, and K. Sekar. "Experimental Investigation on Mechanical and Distortion Characteristics of Titanium/Aluminium Dissimilar Metal Joint Using Laser Beam Welding." Journal of Advanced Manufacturing Systems 17, no. 04 (October 10, 2018): 569–79. http://dx.doi.org/10.1142/s0219686718500324.

Full text

Abstract:

Laser beam welding (LBW) is based on interaction between the laser source and base metals. Different methods have been developed recently to produce weld joints of light metals. This produces good weld bead to simplify the structure and reduce the weight and cost to meet the important concerns of aerospace industry. To achieve these, Ti (Ti6Al4V) and Al (AA2024) dissimilar alloy sheets are welded with butt joint configuration using Nd: YAG pulsed laser welding unit. The weldment is subjected to tests to evaluate mechanical and distortion characteristics. From the test results, it is found that LBW is very much suitable for joining Titanium/Aluminium (Ti/Al) alloy sheets.

APA, Harvard, Vancouver, ISO, and other styles

40

Li, Chun, Lei Chen, Xiaoyang Wang, Xiangyu Dai, Xiaoqing Si, Junlei Qi, Yongxian Huang, Jicai Feng, and Jian Cao. "Joining of yttria stabilised zirconia to Ti6Al4V alloy using novel CuO nanostructure reinforced Cu foam interlayer." Materials Letters 253 (October 2019): 105–8. http://dx.doi.org/10.1016/j.matlet.2019.06.029.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Buffa, Gianluca. "Joining Ti6Al4V and AISI 304 through friction stir welding of lap joints: experimental and numerical analysis." International Journal of Material Forming 9, no. 1 (December 13, 2014): 59–70. http://dx.doi.org/10.1007/s12289-014-1206-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Yu, Jiang, Hongtao Zhang, Bo Wang, Chong Gao, Zhichao Sun, and Peng He. "Dissimilar metal joining of Q235 mild steel to Ti6Al4V via resistance spot welding with Ni–Cu interlayer." Journal of Materials Research and Technology 15 (November 2021): 4086–101. http://dx.doi.org/10.1016/j.jmrt.2021.10.039.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Chatterjee, Suman, Ankit Kumar Pandey, Siba Sankar Mahapatra, Kanwer Singh Arora, and Ajit Behera. "RETRACTED: Microstructural variation at interface during Fiber laser joining of NiTi/Ti6Al4V and effect of mechanical strength." Journal of Materials Processing Technology 282 (August 2020): 116661. http://dx.doi.org/10.1016/j.jmatprotec.2020.116661.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Grittner, N., B. Striewe, A. von Hehl, D. Bormann, M. Hunkel, H. W. Zoch, and F. W. Bach. "Co-Extrusion of Aluminium-Titanium-Compounds." Key Engineering Materials 491 (September 2011): 67–74. http://dx.doi.org/10.4028/www.scientific.net/kem.491.67.

Full text

Abstract:

The combination of different metallic materials enables the design of lightweight structures with tailor-made properties at global as well local scale and offers great potential for advanced solutions especially for the aircraft and automobile sector. Whereas titanium alloys show particular high mechanical strength and good corrosion resistance, aluminium alloys provide a considerable lower density and consequently higher potential for weight savings. However, after conventional fusion joining, e.g. after laser beam welding, heat affected zones, porosity or grain growth may occur and impair the local properties [1, 2]. In contrast, by solid-state joining techniques like co-extrusion these disadvantages can be avoided. Therefore co-extrusion exhibits an attractive solution for long products combining aluminium and titanium based alloys. Current investigations have been focused on the co-extrusion of aluminium and titanium, where titanium is the reinforcing element that is inserted in aluminium profiles. Two different billet variants were examined in the investigations, a titanium-core integrally moulded in the aluminium-billet and titanium-core inserted in a hollow drilled aluminium-billet. Experiments were made with different material combinations, Al99.5 with titanium grade 2 and AlSi1MgMn with Ti6Al4V. Beside mechanical properties of compound the formation of bonding zone are presented.

APA, Harvard, Vancouver, ISO, and other styles

45

Chen, Yuhua, Huaibo Deng, Hao Liu, Timing Zhang, Shuhan Li, Shanlin Wang, and Chao Chen. "A novel strategy for the reliable joining of Ti6Al4V/2A12-T4 dissimilar alloys via friction melt-bonded spot welding." Materials Letters 253 (October 2019): 306–9. http://dx.doi.org/10.1016/j.matlet.2019.06.089.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Szachogluchowicz, Ireneusz, Lucjan Sniezek, Krzysztof Grzelak, Heorhiy Sulym, Ihor Turchyn, and Iaroslav Pasternak. "The Analytical Model of Stress Zone Formation of Ti4Al4V/AA1050/AA2519 Laminate Produced by Explosive Bonding." Metals 9, no. 7 (July 12, 2019): 779. http://dx.doi.org/10.3390/met9070779.

Full text

Abstract:

This paper contains an analytical description of the deformation of the upper layer AA2519/AA1050/Ti6Al4V laminate produced by an explosive bonding method. The basic parameters of the explosive welding process that influence the quality of the bonding are the detonation velocity of the explosive, the explosion energy, and the impact angle of the combined materials. The developed description uses the theory of elastodynamic character of materials deformation at the connection point due to local traction load. The presence of high pressure during joining was limited to the region where the plane surface moving with a constant subsonic velocity. An analytical description of the residual stresses distribution was also a performer. Results of analytical investigations were verified by structure examination of the bond zone. The work was supplemented by the chemical composition analysis of the base materials and a monotonic stretching test characterizing the basic mechanical properties of the produced laminate.

APA, Harvard, Vancouver, ISO, and other styles

47

Béguin, J. D., Y. Balcaen, J. Alexis, V. Gazagne, and E. Andrieu. "Yb: YAG laser welding of Ti6Al4V sheet using conventional and annular power density distribution: microstructure mechanical properties relationship." MATEC Web of Conferences 321 (2020): 11061. http://dx.doi.org/10.1051/matecconf/202032111061.

Full text

Abstract:

Development of high power laser beams with increasing beam quality and decreasing purchase cost lead to a strong development of laser welding techniques. Narrow weld beads, high welding speed, and low heat input are the main advantages of this reliable and repeatable joining process. The aim of this study is to investigate properties of weld seam obtained by Gaussian and annular power distribution, on butt joints of 0.9 mm annealed Ti6Al4V sheet by mean of an experimental design varying power level, spot size and shape, welding speed, and face gaseous protection flow. Examined characteristics of the weld seams are geometrical (Fusion Zone FZ and Heat Affected Zone HAZ shapes and dimensions, defects like porosities, undercut and underfill, distorsions of welded plates), microstructural (FZ and HAZ nature and morphology) and mechanical (tensile test, hardness filiations). Major features concerning the use an annular power distribution concern the flawless weld seam geometry and fair mechanical properties, with relatively low levels of distortions due to residual stresses.

APA, Harvard, Vancouver, ISO, and other styles

48

Szachogłuchowicz, Ireneusz, Lucjan Śnieżek, and Tomasz Ślęzak. "Mechanical Properties Analysis of Explosive Welded Sheet of AA2519-Ti6Al4V with Interlayer of AA1050 Subjected to Heat-Treatment." Materials 15, no. 11 (June 6, 2022): 4023. http://dx.doi.org/10.3390/ma15114023.

Full text

Abstract:

The paper presents results of investigations of welding sheets of AA2519-Ti6Al4V, a difficult-to-joint components materials, produced by explosive welding with a thin technological interlayer of AA1050. The joining process leads to the formation of intermetalics in the vicinity of joint and generates significant residual stresses. In the next step the laminate was subjected to a heat treatment process in order to improve the mechanical properties by precipitation hardening. This treatment should not be carried out before welding because of negative influence on a ductility of the aluminum alloy. Material in this state was subjected to the tests of chemical composition, microstructure, and microhardness. A tensile test was carried out with accompanying strain analysis by the digital image correlation (DIC) method. Moreover, the residual stresses were determined which were measured by using two methods, the X-ray diffraction and the hole drilling. This approach made it possible to measure the residual stresses both in the plane parallel to the surface and in the cross section of the laminate.

APA, Harvard, Vancouver, ISO, and other styles

49

Szachogłuchowicz, Ireneusz, Lucjan Śnieżek, and Tomasz Ślęzak. "Mechanical Properties Analysis of Explosive Welded Sheet of AA2519-Ti6Al4V with Interlayer of AA1050 Subjected to Heat-Treatment." Materials 15, no. 11 (June 6, 2022): 4023. http://dx.doi.org/10.3390/ma15114023.

Full text

Abstract:

The paper presents results of investigations of welding sheets of AA2519-Ti6Al4V, a difficult-to-joint components materials, produced by explosive welding with a thin technological interlayer of AA1050. The joining process leads to the formation of intermetalics in the vicinity of joint and generates significant residual stresses. In the next step the laminate was subjected to a heat treatment process in order to improve the mechanical properties by precipitation hardening. This treatment should not be carried out before welding because of negative influence on a ductility of the aluminum alloy. Material in this state was subjected to the tests of chemical composition, microstructure, and microhardness. A tensile test was carried out with accompanying strain analysis by the digital image correlation (DIC) method. Moreover, the residual stresses were determined which were measured by using two methods, the X-ray diffraction and the hole drilling. This approach made it possible to measure the residual stresses both in the plane parallel to the surface and in the cross section of the laminate.

APA, Harvard, Vancouver, ISO, and other styles

50

Zhao, Xilong, Xinhong Lu, Kun Wang, and Feng He. "Investigation on the microstructure and mechanical properties of Ti6Al4V titanium alloy electron beam welding joint." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 236, no. 6 (January 6, 2022): 2957–66. http://dx.doi.org/10.1177/09544062211032988.

Full text

Abstract:

Electron beam welding (EBW) is a fusion joining process particularly suitable for welding titanium plates. In the present work, 2.5 mm thickness Ti6Al4V titanium alloy plates were butt-welded together with backing plates by EBW. The detailed procedures of experiments were used to investigate the microstructure and mechanical properties of welded joints. The optimum welding speed was determined by microstructure examinations, microhardness tests, X-Ray diffraction tests, shear punch tests (SPT) and stress simulation calculations. The results showed that all microstructure of welded metal (WM) was martensite phase under the different welding speeds. In the heat-affected zone (HAZ), the martensite phase gradually evolved to be small and equiaxed. It can be seen that the microstructure of each region in welded joints did not change significantly. When the welding speed is between 8 mm/s and 14 mm/s, it can be seen from the macroscopic appearance of the joints that there was no utterly fused penetration between the butt plate and substrate. Finite element simulation was carried out for the no-penetration depth under different welding conditions, and it was found that the stress suffered by the small no-penetration depth was the smallest. Using different welding parameters shows that the engineering stress in WM was higher than other areas, and BM was the lowest. As welding speed increases from 8 mm/s to 14 mm/s, the variation of microhardness distribution was not evident.

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Ti6Al4V joining'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles