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

被引：15
|
作者：
Zang Qian-hao [1 ,2 ]
Chen Hong-mei [1 ,3 ]
Lan Fang-yuan [1 ]
Zhang Jing [1 ]
Jin Yun-xue [1 ]
机构：
[1] Jiangsu Univ Sci & Technol, Prov Key Lab Adv Welding Technol, Zhenjiang 212003, Peoples R China
[2] Shandong Univ, Minist Educ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Jinan 250061, Peoples R China
[3] Jiangsu Univ Sci & Technol, Natl Demonstrat Ctr Expt Mat Sci & Engn Educ, Zhenjiang 212003, Peoples R China
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; MECHANICAL-PROPERTIES; MAGNESIUM ALLOY; MG; TEMPERATURE; TEXTURE;
D O I：
10.1007/s11771-017-3506-9
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
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 mu m, respectively. The damping peak P-1 was presented on the curves of temperature-dependent damping capacity for FSPed samples. The damping peak P-2 was restrained after FSP and the damping peak P-1 was a relaxation process. The FSPed samples (2-pass FSP and 3-pass FSP) obtained high damping capacity. The best damping values Q (0) (-1) (epsilon=10(-4)) and damping values Q (H) (-1) (epsilon=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
收藏
页码：1034 / 1039
页数：6
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