Achieving fine grain structure and superplasticity in AZ91-0.4Sn magnesium alloy using short flow rolling process

被引：25

作者：

Yu, Zhao-Peng ^{[2
,3
]}

Zha, Min ^{[1
,2
,3
]}

Li, Zi-Hao ^{[2
,3
]}

Wang, Cheng ^{[1
,2
,3
]}

Wang, Hui-Yuan ^{[1
,2
,3
]}

Jiang, Qi-Chuan ^{[1
,2
,3
]}

机构：

[1] Jilin Univ, State Key Lab Automot Simulat & Control, 5988 Renmin St, Changchun 130025, Peoples R China

[2] Jilin Univ, Key Lab Automobile Mat, Minist Educ, Nanling Campus,5988 Renmin St, Changchun 130025, Peoples R China

[3] Jilin Univ, Sch Mat Sci & Engn, Nanling Campus,5988 Renmin St, Changchun 130025, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2017年 / 695卷

基金：

中国国家自然科学基金;

关键词：

Magnesium alloys; Superplasticity; Rolling; Texture; Tensile properties; HIGH-PRESSURE TORSION; LOW-TEMPERATURE SUPERPLASTICITY; MECHANICAL-PROPERTIES; DEFORMATION-BEHAVIOR; PLASTIC-DEFORMATION; HIGH-STRENGTH; AS-CAST; AZ91; MICROSTRUCTURE; CREEP;

D O I：

10.1016/j.msea.2017.03.108

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We report a new rolling route combining one pass of hard-plate rolling and two passes of conventional rolling. This route is efficient in achieving near-spherical Mg17Al12 phase (similar to 0.5 mu m) and uniform fine-grained structure (similar to 3 mu m) featuring a weakened texture in AZ91-0.4Sn plates after a total thickness reduction of similar to 86.4% via 3 rolling passes. Moreover, the processed alloy exhibited superplasticity-like fracture strain of similar to 96% at 200 degrees C, owing to fine alpha-Mg grains distributed with a high volume fraction of Mg17Al12. This new route significantly reduces rolling passes and hence has a great potential for industrial production.

引用

页码：1 / 5

页数：5

共 34 条

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