Development of extraordinary high-strength-toughness Mg alloy via combined processes of repeated plastic working and hot extrusion

被引：16

作者：

Liu, Ke ^{[1
]}

Wang, Xudong ^{[1
,2
]}

Du, Wenbo ^{[1
]}

机构：

[1] Beijing Univ Technol, Sch Mat Sci & Engn, Beijing 100124, Peoples R China

[2] Beijing Inst Aeronaut Mat, Beijing 10085, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2013年 / 573卷

关键词：

Mg-Gd-Er-Zr alloy; Repeated plastic working; Severe plastic deformation; Ultrafine grain; Dynamic precipitate; MECHANICAL-PROPERTIES; MAGNESIUM ALLOY; DYNAMIC RECRYSTALLIZATION; MICROSTRUCTURE EVOLUTION; ROOM-TEMPERATURE; TEXTURE; PRECIPITATION; DEFORMATION; ENHANCEMENT; DUCTILITY;

D O I：

10.1016/j.msea.2013.02.030

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

An extraordinary high-strength-toughness Mg-11.8Gd-1.9Er-0.4Zr (wt%) alloy has been successfully fabricated by 400 cycles of repeated plastic working process followed by hot extrusion. The sample exhibited an ultimate tensile strength of 500 MPa, tensile yield strength of 455 MPa, companying with a failure elongation of 12.0% at room temperature. The significant enhancement in mechanical properties was attributed to the grain refinement, homogeneous beta phase and modified texture. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：127 / 131

页数：5

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