Enhancement of mechanical properties and formability of Mg-MM-Sn-Al-Zn alloy sheets fabricated by cross-rolling method

被引：21

作者：

Lim, Hyun Kyu ^{[1
]}

Lee, Ju Youn ^{[1
]}

Kim, Do Hyung ^{[1
]}

Kim, Won Tae ^{[2
]}

Lee, Jae-Seol ^{[3
]}

Kim, Do Hyang ^{[1
]}

机构：

[1] Yonsei Univ, Dept Met Engn, Ctr Noncrystalline Mat, Seoul 120749, South Korea

[2] Cheongju Univ, Div Appl Sci, Chonju 360764, Chongbuk, South Korea

[3] Korea Inst Ind Technol, Kwangju 500480, South Korea

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2009年 / 506卷 / 1-2期

关键词：

Wrought magnesium alloys; Cross-rolling; Mechanical properties; Formability; Anisotropy; AZ31 MAGNESIUM ALLOY; ROOM-TEMPERATURE; TEXTURE; DEFORMATION; SLIP; MICROSTRUCTURE; IMPROVEMENT;

D O I：

10.1016/j.msea.2008.12.037

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The mechanical properties and formability of cross-rolled Mg-2MM-2Sn-1Al-1Zn (ETAZ2211) and Mg-3MM-3Sn-1Al-1Zn (ETAZ3311) alloy sheets have been investigated. Comparative specimens have been fabricated by conventional rolling method. Grain size of cross-rolled specimens is smaller than that of conventionally rolled specimens, In addition, grain size of cross-rolled ETAZ3311 is smallest among the investigated specimens. The cross-rolled specimens exhibit a good combination of strength and elongation when compared with that of conventionally rolled specimens. Occurrence of yield phenomena indicates that the activation of non-basal slip is particularly accelerated in cross-rolled specimens. The cross-rolled ETAZ3311 specimen exhibits the best formability in the conical cup test at 200, C. The good formability of the cross-rolled ETAZ3311 specimen can be ascribed to reduction of anisotropy due to the presence of small and well-distributed particles. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：63 / 70

页数：8

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