Effects of Friction Stir Processing on Mechanical Properties and Damping Capacities of AZ31 Magnesium Alloys

International Conference on Materials Sciences and Nanomaterials

材料科学;物理学

Lan, F.Y.^1 ; Chen, H.M.^2 ; Guo, W.P.^2 ; Zhang, J.^2 ; Jin, Y.X.^2

Provincial Key Lab of Advanced Welding Technology, Jiangsu University of Science and Technology, Zhenjiang

212003, China^1

School of Metallurgy and Materials Engineering, Jiangsu University of Science and Technology, Zhangjiagang

215604, China^2

关键词: Average grain size;    AZ31 alloy;    AZ31 magnesium alloy;    Base alloys;    Damping capacity;    Equi-axed grains;    Friction stir processing;    Rotating speed;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/230/1/012013/pdf
DOI  :  10.1088/1757-899X/230/1/012013

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

AZ31 base alloy were subjected to friction stir processing (FSP) with different rotating speed. The effect of FSP on the microstructure, mechanical properties and damping capacities of AZ31 alloy was discussed in this paper. The fine and equiaxed grains were obtained in the SZ for FSPed samples with the rotating speed from 1300rpm to 1700rpm with the average grain size of 11.82μm, 12.93μm and 14.50μm, respectively. The FSPed samples had higher ductility and damping capacities compared with the AZ31 base alloy. The ductility and damping values Q0-1(=10-4) and QH-1(=10-3) of 1500rpm FSPed sample were increased by 121.44%, 5.02% and 7.49%, respectively.