Microstructure and mechanical properties of Mg-Zn-Ca-Ce alloy processed by semi-continuous casting

被引：32

作者：

Du, Y. Z. ^{[1
]}

Zheng, M. Y. ^{[1
]}

Qiao, X. G. ^{[1
]}

Wu, K. ^{[1
]}

Liu, X. D. ^{[2
]}

Wang, G. J. ^{[2
]}

Lv, X. Y. ^{[2
]}

机构：

[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China

[2] Northeast Light Alloy Co Ltd, Harbin 150060, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2013年 / 582卷

关键词：

Mg-Zn-Ca-Ce alloys; Semi-continuous casting; Microstructure; Mechanical properties; AS-CAST; MAGNESIUM; CREEP; SOLIDIFICATION; CALCIUM;

D O I：

10.1016/j.msea.2013.06.027

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The microstructures and mechanical properties of Mg-5.3Zn-0.2Ca-0.5Ce (wt%) alloy fabricated by semi-continuous casting were investigated. The as-cast alloy consists of alpha-Mg, Ca2Mg6Zn3 and T'(1) phase with orthorhombic structure (a=0.57 nm, b=0.75 nm and c=1.00 nm). T'(1) phase mainly distributes at the triple conjunctions while the Ca2Mg6Zn3 at the grain boundaries. The as-cast alloy exhibits high strength retention due to the stable Ca2Mg6Zn3 and T'(1) phase at the grain boundaries. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：134 / 139

页数：6

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