Enhanced age hardening response and creep resistance of Mg-Gd alloys containing Zn

被引：404

作者：

Nie, JF ^{[1
]}

Gao, X ^{[1
]}

Zhu, SM ^{[1
]}

机构：

[1] Monash Univ, Dept Mat Engn, Clayton, Vic 3800, Australia

来源：

SCRIPTA MATERIALIA | 2005年 / 53卷 / 09期

基金：

澳大利亚研究理事会;

关键词：

magnesium alloys; precipitation hardening; creep resistance; Mg-Gd-Zn-Zr;

D O I：

10.1016/j.scriptamat.2005.07.004

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Mg-6Gd-0.6Zr (wt.%) alloy exhibits little age hardening during isothermal ageing treatments and has low creep strengths. Additions of 1-2 wt.% Zn to this alloy significantly enhance the age hardening response and the creep strength. The remarkable improvement in strength and creep resistance is associated with a uniform and dense distribution of basal precipitate plates that are not observed in the Zn-free alloy. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：1049 / 1053

页数：5

共 23 条

[1] Long-period ordered structure in a high-strength nanocrystalline Mg-1 at% Zn-2 at% Y alloy studied by atomic-resolution Z-contrast STEM [J].

Abe, E ;

Kawamura, Y ;

Hayashi, K ;

Inoue, A .

ACTA MATERIALIA, 2002, 50 (15) :3845-3857

[2] Hall-Petch parameters for tension and compression in cast Mg [J].

Andersson, P ;

Cáceres, CH ;

Koike, J .

MAGNESIUM ALLOYS 2003, PTS 1 AND 2, 2003, 419-4 :123-128

[3] Precipitation reactions in magnesium-rare earth alloys containing Yttrium, Gadolinium or Dysprosium [J].

Apps, PJ ;

Karimzadeh, H ;

King, JF ;

Lorimer, GW .

SCRIPTA MATERIALIA, 2003, 48 (08) :1023-1028

[4] Microstructure and mechanical properties of MEZ casting alloy [J].

Bettles, CJ ;

Venkatesan, K ;

Nie, JF .

MAGNESIUM ALLOYS 2003, PTS 1 AND 2, 2003, 419-4 :273-277

[5]

BETTLES CJ, 2000, P C MAGN ALL THEIR A, P705

[6]

BOURGEOIS L, UNPUB

[7]

Cáceres CH, 2002, PHYS STATUS SOLIDI A, V194, P147, DOI 10.1002/1521-396X(200211)194:1<147::AID-PSSA147>3.0.CO

[8]

2-L

[9] Long period stacking structures observed inMg97Zn1Y2 alloy [J].

Itoi, T ;

Seimiya, T ;

Kawamura, Y ;

Hirohashi, M .

SCRIPTA MATERIALIA, 2004, 51 (02) :107-111

[10]

Kamado S., 1992, Journal of Japan Institute of Light Metals, V42, P727, DOI 10.2464/jilm.42.727

← 1 2 3 →