Thermo-mechanical and metallurgical aspects in friction stir processing of AZ31 Mg alloy—A numerical and experimental investigation

Friction stir welding of dissimilar formed Mg alloys(AZ31/AZ91) was successfully carried out at the limited welding conditions. In a sound joint, SZ was mainly consisted of AZ31 Mg alloy which was located the retreating side. Dynamic recrystallization and grain growth occurred and β intermetallic compounds of AZ 91 Mg alloy was not observed in SZ. BM had a higher hardness than that of the weld zone. The fracture location was not weld zone but BM of the AZ91 Mg alloy in tensile test.

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Numerical modeling and experimental investigation on the effect of rotation speed on microstructural evaluation and mechanical properties of copper during friction stir processing

Mechanics Based Design of Structures and Machines ◽

10.1080/15397734.2021.1960561 ◽

2021 ◽

pp. 1-17

Author(s):

Xiaoshan Xu ◽

Gongxing Yan

Keyword(s):

Mechanical Properties ◽

Experimental Investigation ◽

Numerical Modeling ◽

Friction Stir Processing ◽

Rotation Speed ◽

Friction Stir ◽

Microstructural Evaluation

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Micro-nano structure and characterization in the nugget zone of Al-Cu-Mg alloy under friction stir processing

Metallic Materials ◽

10.4149/km_2019_1_27 ◽

2020 ◽

Vol 57 (01) ◽

pp. 27-31

Author(s):

Siyu Sun ◽

Peng Liu ◽

Lanwen Chen ◽

Meiqing Cao ◽

Jiaying Hu ◽

...

Keyword(s):

Friction Stir Processing ◽

Mg Alloy ◽

Nugget Zone ◽

Nano Structure ◽

Friction Stir

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Peak Temperature Correlation and Temperature Distribution during Joining of AZ80A Mg Alloy by FSW – A Numerical and Experimental Investigation

Strojniški vestnik – Journal of Mechanical Engineering ◽

10.5545/sv-jme.2020.6566 ◽

2020 ◽

Vol 66 (6) ◽

pp. 395-407 ◽

Cited By ~ 1

Author(s):

p Sevvel ◽

S.D. Dhanesh Babu ◽

R. Senthil Kumar

Keyword(s):

Experimental Investigation ◽

Temperature Distribution ◽

Quadratic Equation ◽

Peak Temperature ◽

Mg Alloy ◽

Element Analysis ◽

Temperature Correlation ◽

Friction Stir ◽

Az80a Mg Alloy ◽

Experimental Values

A quadratic equation has been developed based on experimental measurements to estimate the peak temperature in the friction stir welding (FSW) process during the joining of AZ80A Mg alloys. The numerical simulation of the FSW process was performed by employing COMSOL software to predict and calculate the distribution of temperature on the various regions of the parent metal and the welded joints. The predicted and finite element analysis (FEA) simulating the results of the distribution of peak temperatures were found to be consistent with the experimental values. In addition to this, a parametric experimental investigation was conducted to identify the most influential process parameter that plays a significant role in the peak temperature distribution during FSW of AZ80A Mg alloy. Linear contributions by the input process parameters of FSW, namely, traversing speed, rotating tool speed and axial force on the peak temperature were observed to be 32.82 %, 41.65 % and 21.76 %, respectively.

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