教授 博士生导师 硕士生导师
性别: 男
毕业院校: 大连理工大学
学位: 博士
所在单位: 材料科学与工程学院
联系方式: 0411-84706183
电子邮箱: zxgwj@dlut.edu.cn
开通时间: ..
最后更新时间: ..
点击次数:
论文类型: 期刊论文
发表时间: 2017-07-31
发表刊物: MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
收录刊物: SCIE、EI、Scopus
卷号: 701
页面范围: 314-318
ISSN号: 0921-5093
关键字: Mg-Zn-RE magnesium alloys; Rolling; Microstructure; Texture
摘要: In present paper, Al element was introduced to weaken the basal texture of Mg-8Gd-5Y-2Zn alloy. Due to the addition of Al, the precipitation of Mg12Zn(Y, Gd) is significantly depressed, while the precipitation of Mg3Zn3(Y, Gd)(2), Al-11(Y, Gd)(3,) and Al-2(Y, Gd) is enhanced. The Al-11(Y, Gd)(3) and Al-2(Y, Gd), which are located in grain interior, stimulate the dynamic recrystallization due to the particle-stimulated nucleation (PSN) effect in cross rolling process. This results in a multi-peak characteristic with wider orientation distribution of basal poles. Furthermore, the maximum pole intensity of the as-rolled Mg-8Gd-5Y-2Zn-1A1 alloy was significantly weakened.