Significant texture weakening of Mg-8Gd-5Y-2Zn alloy by Al addition

被引：21
作者：
Fang, Canfeng [1 ]
Liu, Guangxu [1 ,2 ]
Liu, Xiaoteng [1 ]
Hao, Hai [1 ]
Zhang, Xingguo [1 ]
机构：
[1] Dalian Univ Technol, Sch Mat Sci & Engn, Key Lab Solidificat Control & Digital Preparat Te, Dalian 116024, Peoples R China
[2] BIAM, Sci & Technol Adv High Temp Struct Mat Lab, Beijing 100095, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2017年 / 701卷
基金：
中国国家自然科学基金;
关键词：
Mg-Zn-RE magnesium alloys; Rolling; Microstructure; Texture; Y-ZR ALLOYS; MECHANICAL-PROPERTIES; HOT DEFORMATION; MAGNESIUM ALLOY; HIGH-STRENGTH; MG; MICROSTRUCTURE; FORMABILITY; BEHAVIOR; YTTRIUM;
D O I：
10.1016/j.msea.2017.06.085
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
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.
引用
收藏
页码：314 / 318
页数：5
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