Material flow and microstructural evolution during friction stir spot welding of AZ31 magnesium alloy

2012 ◽  
Vol 543 ◽  
pp. 200-209 ◽  
Author(s):  
W. Yuan ◽  
R.S. Mishra ◽  
B. Carlson ◽  
R. Verma ◽  
R.K. Mishra
Keyword(s):  
Magnesium Alloy ◽  
Microstructural Evolution ◽  
Material Flow ◽  
Spot Welding ◽  
Friction Stir Spot Welding ◽  
Az31 Magnesium Alloy ◽  
Friction Stir

scholarly journals Revealing joining mechanism in refill friction stir spot welding of AZ31 magnesium alloy to galvanized DP600 steel

2021 ◽  
pp. 109997
Author(s):  
Banglong Fu ◽  
Junjun Shen ◽  
Uceu F.H.R. Suhuddin ◽  
Ayrton A.C. Pereira ◽  
Emad Maawad ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Spot Welding ◽  
Friction Stir Spot Welding ◽  
Az31 Magnesium Alloy ◽  
Friction Stir

Study on Friction Stir Spot Welding Procedure of AZ31 Magnesium Alloy

2011 ◽  
Vol 239-242 ◽  
pp. 1437-1441
Author(s):  
Cheng Gang Ding ◽  
Chuan Jun Guo ◽  
Gao Feng Quan ◽  
Feng Wu
Keyword(s):  
Magnesium Alloy ◽  
Spot Welding ◽  
Rotation Speed ◽  
Orthogonal Design ◽  
Shear Resistance ◽  
Friction Stir Spot Welding ◽  
Az31 Magnesium Alloy ◽  
Welding Parameters ◽  
Resistance Force ◽  
Friction Stir

The study has examined the influence of FSSW (friction stir spot welding) parameters (rotation speed, downward compression and welding period) on mechanical property (shear resistance force) by conducting FSSW experiments on 3mm-thick AZ31 magnesium alloy plates under the orthogonal design. According to the experiment result, welding period is the major factor that decides the shear resistance force of FSSW joints, optimum welding parameters are: rotation speed(RS) 2450r/min, welding period(WP) 8s, downward compression of the tool shoulder(DCTS) 0.2mm. Microstructure observations show that tiny and even equiaxial grains are formed in WN (Weld nugget zone) and coarse grains with uneven sizes are formed in TMAZ(thermo-mechanically affected zone) and HAZ (Heat affected zone).

Grain Structure Formation Ahead of Tool during Friction Stir Welding of AZ31 Magnesium Alloy

2010 ◽  
Vol 160 ◽  
pp. 313-318 ◽  
Author(s):  
Uceu Suhuddin ◽  
Sergey Mironov ◽  
H. Takahashi ◽  
Yutaka S. Sato ◽  
Hiroyuki Kokawa ◽  
...  
Keyword(s):  
Friction Stir Welding ◽  
Magnesium Alloy ◽  
Structure Formation ◽  
Material Flow ◽  
Boundary Migration ◽  
Deformation Mode ◽  
Grain Structure ◽  
Az31 Magnesium Alloy ◽  
Structure Evolution ◽  
Friction Stir

The “stop-action” technique was employed to study grain structure evolution during friction-stir welding of AZ31 magnesium alloy. The grain structure formation was found to be mainly governed by the combination of the continuous and discontinuous recrystallization but also involved geometric effect of strain and local grain boundary migration. Orientation measurements showed that the deformation mode was very close to the simple shear associated with the rotating pin and material flow arose mainly from basal slip.

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