Hot compression behavior of the Mg-Gd-Y-Zn-Zr alloy filled with intragranular long-period stacking ordered phases
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- 影响因子：5.316
- 发表刊物：Journal Of Alloys And Compounds
- 关键字：Magnesium alloy; Long-period stacking ordered; Compression ;Microstructure ; Mechanical property
- 摘要：The compression behavior and mechanical properties of the Mg-6.9Gd-3.2Y-1.5Zn-0.5Zr (wt.%) alloy filled with intragranular long-period stacking ordered (LPSO) phases were investigated. This alloy possesses a high activation energy of similar to 359 kJ/mol, because intragranular LPSO phases inhibit the lattice rotation of a-Mg matrix and may provide back stress. Compression temperature and strain rate (i.e. Zener-Hollomon parameters) combine to influence the DRX (ratio and grain size), workability, and mechanical properties, while the effect of strain rate on the DRX-ed grain size may be reduced at the compression temperature of 450 degrees C. The alloy compressed at 420 degrees C and 0.002 s(-1) exhibits the superior strength because of the finer DRX-ed grain size, larger number of dynamic precipitates and kink bands. However, dynamic precipitates deteriorate the ductility and workability.
- 合写作者：Chuming Liu, Shunong Jiang, Wenhui Liu, Liwei Lu
- 第一作者：Xiaojie Zhou
- 论文类型：期刊论文
- 通讯作者：Yonghao Gao
- 论文编号：WOS:000407848400065
- 学科门类：工学
- 一级学科：材料科学与工程
- 文献类型：J
- 卷号：724
- 页面范围：528-536
- ISSN号：0925-8388
- 是否译文：否
- 发表时间：2017-11-15
- 收录刊物：EI、SCI
