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] Provincial Key Lab of Advanced Welding Technology, Jiangsu University of Science and Technology, Zhenjiang,212003, China

[2] Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials, Ministry of Education, Shandong University, Jinan,250061, China

[3] Giant Light Metal Technology (Kunshan) Co., Ltd, Kunshan,215300, China

[4] School of Metallurgical and Materials Engineering, Jiangsu University of Science and Technology, Zhangjiagang,215600, China

来源：

Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering | 2016年 / 45卷 / 06期

关键词：

Relaxation processes - Damping - Annealing - Recrystallization (metallurgy) - Activation energy;

D O I：

暂无

中图分类号：

学科分类号：

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 P1 is a relaxation process and the activation energy H for P1 is 132 kJ/mol. However, the damping peak P2 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. © 2016, Science Press. All right reserved.

引用

页码：1578 / 1582