124 Tensile property and hardness distribution of age strengthening Al-Zn-Mg-Cu alloy (A7075) friction weld joint

2000 ◽  
Vol 2000.40 (0) ◽  
pp. 48-49
Author(s):  
Masashi TAKAHASHI ◽  
Akiyoshi FUJI ◽  
Hideaki TOHKUNI
2011 ◽  
Vol 391-392 ◽  
pp. 1225-1229
Author(s):  
Cheng Gang Yang ◽  
Ge Ping Liu ◽  
Yu Hua Chen ◽  
Wei Ping Xu

The effect of single pulse, electromagnetic stirring plus single pulse on the microstructures and properties of high strength Al-Cu alloy welds is investigated. The results show that the grain structure of weld under conventional MIG welding are coarse, oriented columnar grains, the ultimate tensile strength of weld joint is 286.5 MPa, the elongation rate of joint is 2.4%. The thermal gradient at the solid-liquid interface in the welding pool is decreased and the density of heterogeneous nucleation is enhanced by electromagnetical stirring plus single pulse, which resulted in the coarse and oriented columnar grains transforming to fine equiaxed grains; morphology and distribution of α(Al)-CuAl2 eutectic along the grain boundaries are improved, so it significantly improves the mechanical property of weld joint, the ultimate tensile strength of weld joint is up to 326.0 MPa, the elongation rate of joint reaches 7.8%.


2003 ◽  
Vol 50 (12) ◽  
pp. 1036-1040 ◽  
Author(s):  
Kazumi Minagawa ◽  
Hideki Kakisawa ◽  
Minoru Otaguchi ◽  
Yoshiaki Osawa ◽  
Susumu Takamori ◽  
...  

2012 ◽  
Vol 576 ◽  
pp. 761-765 ◽  
Author(s):  
Yudy Surya Irawan ◽  
Marsoedi Wirohardjo ◽  
Mochamad Syamsul Ma’arif

Tensile strength of Aluminum A6061 joint produced by spinning friction welding (SFW) with various chamfer angles was studied. Tensile strength test specimens that have weld joint part at their centers were machined from spinning friction welded base metals. SFW specimens were prepared by making various chamfer angles of 15, 30, 45, 60, 75 degree and without chamfer angle on both contact-surfaces of base materials. It was found that chamfer angle affected tensile strength of weld joint of Aluminum A6061. Base materials with chamfer angle of 30 degree resulted in specimen that had the maximum tensile strength of friction weld joint. From the result of macrostructure evaluation, it was found that high strength in these specimens was due to the maximum area of fully plasticized zone, minimum porosity and minimum area of heat-affected zone.


2019 ◽  
Vol 151 ◽  
pp. 84-95 ◽  
Author(s):  
Huigang Shi ◽  
Xianglong Guo ◽  
Jiuxiao Li ◽  
Jianwei Mao ◽  
Junqiang Lu ◽  
...  

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