scholarly journals Microstructure and Mechanical Properties of Dissimilar Friction Stir Welding between Ultrafine Grained 1050 and 6061-T6 Aluminum Alloys

Metals ◽  
2016 ◽  
Vol 6 (10) ◽  
pp. 249 ◽  
Author(s):  
Yufeng Sun ◽  
Nobuhiro Tsuji ◽  
Hidetoshi Fujii
Keyword(s):  
Mechanical Properties ◽  
Friction Stir Welding ◽  
Aluminum Alloys ◽  
Friction Stir ◽  
Microstructure And Mechanical Properties ◽  
Ultrafine Grained ◽  
Dissimilar Friction Stir Welding

Microstructure and Mechanical Properties of Friction Stir Welded AA2195-T0

2016 ◽  
Vol 857 ◽  
pp. 266-270 ◽  
Author(s):  
Ho Sung Lee ◽  
Jong Hoon Yoon ◽  
Joon Tae Yoo ◽  
Kyung Ju Min
Keyword(s):  
Mechanical Properties ◽  
Friction Stir Welding ◽  
Aluminum Alloys ◽  
Weld Zone ◽  
Microscopic Analysis ◽  
Butt Joint ◽  
Fusion Welding ◽  
Electron Microscopic ◽  
Friction Stir ◽  
Microstructure And Mechanical Properties

Aluminum-copper-lithium alloy is a light weight metal that has been used as substitute for conventional aerospace aluminum alloys. With addition of Li element, it has lower density but higher strength. However these aluminum alloys are hard to weld by conventional fusion welding, since they often produce porosities and cracking in the weld zone. It is known that solid state welding like friction stir welding is appropriate for joining of this alloy. In this study, friction stir welding was performed on AA2195 sheets, in butt joint configuration in order to understand effects of process parameters on microstructure and mechanical properties in the weld zone. The results include the microstructural change after friction stir welding with electron microscopic analysis of precipitates.

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