Effect of Heat Treatment on Microstructure and Damping Capacity of Twin Roll Cast ZK60 Alloy

被引：0

作者：

Zang Qianhao ^{[1
,2
]}

Liu Zhongming ^{[1
]}

Chen Hongmei ^{[1
,3
]}

Zhang Jing ^{[4
]}

Jin Yunxue ^{[1
]}

机构：

[1] Jiangsu Univ Sci & Technol, Prov Key Lab Adv Welding Technol, Zhenjiang 212003, Peoples R China

[2] Shandong Univ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Minist Educ, Jinan 250061, Peoples R China

[3] Giant Light Met Technol Kunshan Co Ltd, Kunshan 215300, Peoples R China

[4] Jiangsu Univ Sci & Technol, Sch Met & Mat Engn, Zhangjiagang 215600, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2016年 / 45卷 / 06期

关键词：

twin roll casting; microstructure; damping peak; G-L theory; MECHANICAL-PROPERTIES; MATRIX COMPOSITES; MAGNESIUM;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

ZK60 alloy strip was fabricated by Twin Roll Casting (TRC for short) technology. The effect of heat treatment on microstructure and damping capacities was investigated by optical microscope (OM) and dynamic mechanical analyzer (DMA). The results show that the homogeneous structure of the alloy strip is obtained after annealing treatment, while it transforms into equiaxed recrystallized grains after T6 treatment. The damping peak P-1 is a relaxation process and the activation energy H for P-1 is 132 kJ/mol. However, the damping peak P-2 is not a relaxation process but a recrystallized damping peak. The classical curve of strain amplitude dependence of damping capacity of TRC ZK60 strip is present after T6 treatment (aging for 6 h), but the curves of strain amplitude dependence of damping capacity of TRC ZK60 strip with two different dislocations system occur after other T6 treatment. Strain amplitude dependence of damping capacity of TRC ZK60 strip after T6 treatment abides by the G-L theory.

引用

页码：1578 / 1582

页数：5

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