Creep behavior and threshold stress of an extruded Al-6Mg-2Sc-1Zr alloy

被引：29

作者：

Deshmukh, SP

Mishra, RS ^{[1
]}

Kendig, KL

机构：

[1] Univ Missouri, Dept Met Engn, Rolla, MO 65409 USA

[2] USAF, Res Lab, Mat & Mfg Directorate, Wright Patterson AFB, OH 45433 USA

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2004年 / 381卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

aluminum alloy; creep test; threshold stress;

D O I：

10.1016/j.msea.2004.05.025

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Creep experiments were performed on extruded Al-6Mg-2Sc-1Zr (wt.%) alloy in a temperature range of 423-533 K. A threshold type creep behavior was measured and explained by observed dislocation-particle interactions. The experimental threshold stress values at various temperatures were compared with existing theoretical models. None of the available models could account for the decrease in threshold creep strength with increasing temperature. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：381 / 385

页数：5

共 18 条

[1]

ARTZ E, 1986, ACTA METALL, V34, P1893

[2]

Ashby M.F., 1982, DEFORMATION MECH MAP

[3] THRESHOLD CREEP-BEHAVIOR OF DISCONTINUOUS ALUMINUM AND ALUMINUM-ALLOY MATRIX COMPOSITES - AN OVERVIEW [J].