Effect of friction stir processing on microstructure and damping capacity of AZ31 alloy

被引：0

作者：

臧千昊 ^{[1
,2
]}

陈洪美 ^{[1
,3
]}

蓝方园 ^{[1
]}

张静 ^{[1
]}

金云学 ^{[1
]}

机构：

[1] Provincial Key Lab of Advanced Welding Technology, Jiangsu University of Science and Technology

[2] Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials of Ministry of Education, Shandong University

[3] National Demonstration Center for Experimental Materials Science and Engineering Education (Jiangsu University of Science and Technology)

来源：

Journal of Central South University | 2017年 / 24卷 / 05期

关键词：

Mg-Al-Zn alloy(AZ31); friction stir processing(FSP); damping peak; G-L model;

D O I：

暂无

中图分类号：

TG146.22 []; TG453.9 [];

学科分类号：

080502 ; 080201 ; 080503 ;

摘要：

AZ31 alloy sheet fabricated by rolling was processed by friction stir processing（FSP） with different passes. The effect of FSP on the microstructure and damping capacity of AZ31 alloy sheet was discussed. The fine and equiaxed grains were obtained in the stirred zone（SZ） for FSPed samples from 1 pass to 3 passes with the average grain size of 10.6, 10.4 and 13.6 μm, respectively. The damping peak P1 was presented on the curves of temperature-dependent damping capacity for FSPed samples. The damping peak P2 was restrained after FSP and the damping peak P1 was a relaxation process. The FSPed samples（2-pass FSP and 3-pass FSP） obtained high damping capacity. The best damping valuesQ0-1(ε=10-4) and damping values QH-1(ε=10-3) of the sample subjected to 3-pass FSP（0.0131 and 0.0496） increased by 33.7% and 157.0%, respectively.

引用

页码：1034 / 1039

页数：6