Effect of heat treatment on microstructure and mechanical properties of twin roll cast and sequential warm rolled ZK60 alloy sheets
Effect of heat treatment on microstructure and mechanical properties of twin roll cast and sequential warm rolled ZK60 alloy sheets
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DOI：
10.1016/j.jallcom.2008.08.077
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发表时间：
2009-05-12
影响因子：
6.2
通讯作者：
Min, Guanghui
中科院分区：
文献类型：
--
作者：
Chen, Hongmei;Kang, Suk Bong;Min, Guanghui
研究了ZK60合金板材在固溶处理和人工时效条件下的组织和力学性能。在375 ℃下固溶处理3小时，随后在175 ℃下人工时效处理10小时，可以认为是最佳的T6处理。在此最佳T6处理条件下，拉伸性能的均匀性得到改善，并获得了细小的等轴组织。用透射电子显微镜（TEM）观察了Zn、Zr元素的分布。Zn可以在棒状β ′（1）沉淀物和盘状β ′（2）沉淀物中发现。Zr存在于盘状β ′（2）或不规则形状的颗粒中，但在棒状β ′（1）沉淀物中未发现Zr。(C)2008 Elsevier B.V.保留所有权利。
Microstructure and mechanical properties of ZK60 alloy sheets were investigated under solution treatment and artificial aging conditions. Solution treatment at 375 degrees C for 3 h and subsequent artificial aging treatment at 175 degrees C for 10 h can be considered to be the optimum T6 treatment. The uniformity of tensile properties was improved and fine equiaxed structure was obtained at this optimum T6 treatment condition. The distribution of Zn and Zr elements was also observed by transmission electron microscope (TEM). Zn can be found in rod-like beta'(1) precipitates and disc-shaped beta'(2) precipitates. Zr was found in disc-shaped beta'(2) or irregular shaped particles, but Zr was not found in the rod-like beta'(1) precipitates. (C) 2008 Elsevier B.V. All rights reserved.