Improving Corrosion Resistance of Friction Stir Welding Joint of 7075 Aluminum Alloy by Micro-arc Oxidation

2014 ◽  
Vol 30 (12) ◽  
pp. 1251-1254 ◽  
Author(s):  
Yue Yang ◽  
Leilei Zhou
Keyword(s):  
Corrosion Resistance ◽  
Aluminum Alloy ◽  
Friction Stir Welding ◽  
7075 Aluminum Alloy ◽  
Friction Stir ◽  
Welding Joint ◽  
Micro Arc Oxidation

scholarly journals Stress corrosion behavior of friction stir welding joint of 7N01 aluminum alloy

2021 ◽  
Vol 15 ◽  
pp. 1130-1144
Author(s):  
Yuzhe Pan ◽  
Yu Wang ◽  
Fuqiang Guo ◽  
Tiehao Zhang ◽  
Kenji Matsuda ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Friction Stir Welding ◽  
Stress Corrosion ◽  
Corrosion Behavior ◽  
Friction Stir ◽  
Welding Joint

Study on the Precipitation Behavior of Precipitates of 7075 Aluminum Alloy Friction Stir Welding Joint

2020 ◽  
Vol 1003 ◽  
pp. 37-46
Author(s):  
Hao Zhu ◽  
Shao Kang Dong ◽  
Ze Ming Ma ◽  
Jun Wang
Keyword(s):  
Aluminum Alloy ◽  
Friction Stir Welding ◽  
Strain Hardening ◽  
Strengthening Effect ◽  
7075 Aluminum Alloy ◽  
Friction Stir ◽  
Microhardness Distribution ◽  
Fine Grain ◽  
Fine Grain Strengthening ◽  
Precipitated Phases

In this work, the microhardness of 7075 aluminum alloy friction stir welding (FSW) joint was measured by a micro vickers hardness tester, the microstructure of the joints was characterised by microscope, the precipitated phases among the welding nugget zone (WNZ), thermal mechanical affected zone (TMAZ), heat affected zone (HAZ) were affirmed by X-ray diffractometer (XRD) and the lattice fringe of transmission electron microscopy (TEM) high resolution image. Based on this, the precipition behavior of precipitated phases was studied. The results show that the microhardness distribution of the 7075 aluminium alloy FSW joints is heterogeneous in comparison with the base metal (BM). The precipitates in the joint mainly include MgZn rod shape and AlCuMg in elliptical shape. In the WNZ, the main precipitate is AlCuMg, and the fine grain strengthening effect is better, so the microhardness in this zone is relatively high. In the TMAZ, the quantity of AlCuMg decreased while the MgZn2 increased relatively in comparison with the WNZ. At the same time, the effect of the fine grain strengthening was weakened, though the strain hardening increased. Therefore, the microhardness in the TMAZ still decreased. In the HAZ, the quantity of MgZn2 increased furtherly, and there is no strain hardening and fine grain strengthening, so the microhardness of the HAZ was the lowest among the FSW joints. Besides, through comparative tests, the optimal process parameters of friction stir welding of 7075 aluminum alloy were obtained.

301 Vickers Hardness Distribution for Friction Stir Welding 7075 Aluminum Alloy

2010 ◽  
Vol 2010.48 (0) ◽  
pp. 65-66
Author(s):  
Tsutomu ITO ◽  
Xiaoyong YUN ◽  
Alexandre GOLOBOLODKO ◽  
Yoshinobu MOTOHASHI ◽  
Goroh ITOH ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Friction Stir Welding ◽  
Vickers Hardness ◽  
Hardness Distribution ◽  
7075 Aluminum Alloy ◽  
Friction Stir

scholarly journals Optimization of friction stir welding parameters for improved corrosion resistance of AA2219 aluminum alloy joints

2015 ◽  
Vol 11 (4) ◽  
pp. 330-337 ◽  
Author(s):  
G. Rambabu ◽  
D. Balaji Naik ◽  
C.H. Venkata Rao ◽  
K. Srinivasa Rao ◽  
G. Madhusudan Reddy
Keyword(s):  
Corrosion Resistance ◽  
Aluminum Alloy ◽  
Friction Stir Welding ◽  
Welding Parameters ◽  
Friction Stir ◽  
Aa2219 Aluminum Alloy

Influence of Microstructure of Friction Stir Welding Joint on Growth of Microarc Oxidation Coating on 2219 Aluminum Alloy

2011 ◽  
Vol 26 (9) ◽  
pp. 897-901 ◽  
Author(s):  
Wen-Bin XUE ◽  
Liang LU ◽  
Jian-Cheng DU ◽  
Ming HUA ◽  
Yan-Hua ZHAO
Keyword(s):  
Aluminum Alloy ◽  
Friction Stir Welding ◽  
Microarc Oxidation ◽  
Friction Stir ◽  
Welding Joint ◽  
2219 Aluminum Alloy
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