Creep behavior of extruded Al-6Mg-1Sc-1Zr-10 vol.% SiCp composite

被引：9

作者：

Deshmukh, SP

Mishra, RS ^{[1
]}

Kendig, KL

机构：

[1] Univ Missouri, Dept Mat Sci & 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 | 2005年 / 410卷

基金：

美国国家科学基金会;

关键词：

aluminum matrix composite; creep behavior; threshold stress;

D O I：

10.1016/j.msea.2005.08.096

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Creep tests were performed on a fine-grained Al-6Mg-1Sc-1Zr-10vol.% SiC particulate composite in the temperature range of 423-533 K. The composite exhibited a high value of apparent stress exponent and apparent activation energy for creep at low temperatures. The flow behavior of this composite was characterized by the presence of a threshold stress. Incorporation of threshold stress into analysis reduces the high values of apparent stress exponent and activation energy to those anticipated from the creep of solid solution alloys. The result showed increased creep resistance in the composite compared to the unreinforced alloy. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：53 / 57

页数：5

共 19 条

[1]

[Anonymous], RES MECH

[2]

Ashby M.F., 1982, DEFORMATION MECH MAP

[3]

DESHMUKH S, UNPUB

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