scholarly journals Microstructural and fatigue crack growth behavior inhomogeneity of trace Sc added 7085 alloy friction stir welded joint

2021 ◽  
Author(s):  
Zixing Jia ◽  
Lili Wei ◽  
Hongfeng Huang ◽  
Chongyu Liu ◽  
Hongjie Jiang ◽  
...  
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Welded Joint ◽  
Growth Behavior ◽  
Crack Growth Behavior ◽  
Fatigue Crack Growth Behavior ◽  
Friction Stir

Fatigue Crack Growth Behavior of Friction Stir Welding of 6063-T5 Aluminum Alloys

2010 ◽  
Vol 146-147 ◽  
pp. 1498-1501
Author(s):  
Supachai Surapunt
Keyword(s):  
Fatigue Crack ◽  
Friction Stir Welding ◽  
Aluminum Alloys ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Base Metal ◽  
Growth Behavior ◽  
Crack Growth Behavior ◽  
Fatigue Crack Growth Behavior ◽  
Friction Stir

The microstructure and fatigue crack growth behavior of friction stir welding of 6063-T5 aluminum alloys were investigated. For this propose, fatigue crack growth curves were determined in four different locations of notch, which are base metal, middle of welded zone (parallel to weld line), near interface and interface (shoulder limits). The crack initiation and crack propagation of the base metal specimens presented slower than those of stir welded specimens. The microstructure observations show that the grain sizes in stir welded zone are finer than that in the unaffected base material and in the heat affected zone.

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