| 热处理对双辊铸轧ZK60镁合金组织及阻尼性能的影响 |
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| 引用本文： | 臧千昊,刘忠明,陈洪美,张静,金云学. 热处理对双辊铸轧ZK60镁合金组织及阻尼性能的影响[J]. 稀有金属材料与工程, 2016, 45(6): 1578-1582 |
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| 作者姓名： | 臧千昊 刘忠明 陈洪美 张静 金云学 |
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| 作者单位： | 江苏科技大学江苏省先进焊接技术重点试验室,江苏科技大学江苏省先进焊接技术重点试验室,江苏科技大学江苏省先进焊接技术重点试验室,江苏科技大学张家港校区冶金与材料工程学院,江苏科技大学江苏省先进焊接技术重点试验室 |
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| 基金项目： | 江苏省高校自然科学基金资助(13KJB430010), 2014年度江苏省博士后科研资助项目(1401168C)和江苏省高校优势学科建设工程资助项目 |
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| 摘 要： | 采用双辊铸轧法制备了ZK60镁合金条带,采用金相显微镜(OM)和动态机械分析仪(DMA)研究了热处理后ZK60镁合金条带的组织和阻尼性能。退火处理后,组织较为均匀。T6处理后组织转变为均匀的等轴晶。在温度-阻尼谱中出现了2个温度阻尼峰,P1峰为弛豫型阻尼峰,其激活能为132 kJ/mol,P2峰为非弛豫型再结晶阻尼峰。T6处理条件下,时效时间为6 h时,呈现典型的位错型应变-阻尼图谱;在其他时效时间下,呈现2种混合位错型的应变-阻尼图谱。T6态双辊铸轧ZK60镁合金的应变-阻尼性能遵循G-L理论。
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| 关 键 词： | 双辊铸轧 组织 阻尼峰 G-L理论 |
| 收稿时间： | 2015-07-21 |
| 修稿时间： | 2015-11-13 |
Effect of heat treatment on microstructure and damping capacity of twin roll cast ZK60 alloy |
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| Zang Qianhao,Liu Zhongming,Chen Hongmei,Zhang Jing and Jin Yunxue. Effect of heat treatment on microstructure and damping capacity of twin roll cast ZK60 alloy[J]. Rare Metal Materials and Engineering, 2016, 45(6): 1578-1582 |
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| Authors: | Zang Qianhao Liu Zhongming Chen Hongmei Zhang Jing Jin Yunxue |
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| Affiliation: | Provincial Key Lab of Advanced Welding Technology,Jiangsu University of Science and Technology,Zhenjiang,Provincial Key Lab of Advanced Welding Technology,Jiangsu University of Science and Technology,Zhenjiang,Provincial Key Lab of Advanced Welding Technology,Jiangsu University of Science and Technology,Zhenjiang,,Provincial Key Lab of Advanced Welding Technology,Jiangsu University of Science and Technology,Zhenjiang |
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| Abstract: | ZK60 alloy strip was fabricated by Twin Roll Casting (TRC for short) technology in this paper. The effect of heat treatment on microstructure and damping capacities was discussed by using optical microscope (OM) and dynamic mechanical analyzer (DMA). The homogeneous structure was obtained after annealing treatment. The equiaxed recrystallized grains were obtained after T6 treatment. The damping peak P1 is a relaxation process. The activation energy H for P1 was 132KJ/mol. The damping peak P2 is not a relaxation process. It is a recrystallized damping peak. The classical curve of strain amplitude dependence of damping capacity of TRC ZK60 strip was present after T6 treatment (aging for 6hrs), but the curves of strain amplitude dependence of damping capacity of TRC ZK60 strip with two different dislocations system were obtained after the other T6 treatment. Strain amplitude dependence of damping capacity of TRC ZK60 strip after T6 treatment abide by the G-L theory. |
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| Keywords: | twin roll casting microstructure damping peak G-L theory |
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