Friction Stir Welding in Wrought and Cast Aluminum Alloys: Weld Quality Evaluation and Effects of Processing Parameters on Microstructure and Mechanical Properties

2017 ◽  
Vol 48 (4) ◽  
pp. 1708-1726 ◽  
Author(s):  
Yi Pan ◽  
Diana A. Lados
Keyword(s):  
Mechanical Properties ◽  
Friction Stir Welding ◽  
Aluminum Alloys ◽  
Quality Evaluation ◽  
Processing Parameters ◽  
Weld Quality ◽  
Cast Aluminum ◽  
Friction Stir ◽  
Microstructure And Mechanical Properties ◽  
Cast Aluminum Alloys

Metallurgical Studies on the Friction Stir Welding of Dissimilar A356 and A413 Alloys

2012 ◽  
Vol 488-489 ◽  
pp. 345-349
Author(s):  
G. Elatharasan ◽  
V.S. Senthil Kumar
Keyword(s):  
Mechanical Properties ◽  
Friction Stir Welding ◽  
Aluminum Alloys ◽  
Structural Characteristics ◽  
Grain Structure ◽  
Cast Aluminum ◽  
Friction Stir ◽  
Dissimilar Aluminum Alloys ◽  
Cast Aluminum Alloys ◽  
Welding Defects

Friction stir welding is a technique useful for joining aluminum alloys that are difficult to weld. In recent years, however the focuses has been on welding dissimilar aluminum alloys, and analyze their mechanical properties and micro-structural characteristics. In the present study, the less investigated welding of cast aluminum alloys is considered. Cast aluminum alloys, A356 and A413, commonly used in automotive and aerospace industries, were friction-stir welded and their mechanical properties and micro-structural characteristics were analyzed. On testing their welded region, no welding defects were observed. The welded region exhibited a maximum tensile strength of 90 N/mm2 and Vickers micro-hardness of 56.8. The micro-structural observations at the nugget region revealed a refined grain structure.

Friction Stir Welding of Dissimilar A319 and A413 Cast Aluminum Alloys

2014 ◽  
Vol 39 (8) ◽  
pp. 6363-6373 ◽  
Author(s):  
A. Karam ◽  
T. S. Mahmoud ◽  
H. M. Zakaria ◽  
T. A. Khalifa
Keyword(s):  
Friction Stir Welding ◽  
Aluminum Alloys ◽  
Cast Aluminum ◽  
Friction Stir ◽  
Cast Aluminum Alloys

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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