Cumulative creep and hot isostatic pressing of particle-reinforced metal matrix composites

被引：5

作者：

Hung, NP ^{[1
]}

Lim, CS ^{[1
]}

Ho, YK ^{[1
]}

Tan, YC ^{[1
]}

Tan, WG ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Mech & Prod Engn, Singapore 639798, Singapore

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2000年 / 101卷 / 1-3期

关键词：

creep; metal matrix composite; microstructure; crack initiation; crack propagation;

D O I：

10.1016/S0924-0136(00)00399-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study investigated the creep of aluminum metal matrix composite reinforced with SiC particles (A359/SiCp). The cumulative effect of stress on the tensile creep was modeled for the composite and compared with that for 6061 aluminum. Modified from Miner's rule, the models conservatively predicted a cumulative creep life to within 35% of the measured data. Although drastically reducing the porosity of the cast composites, hot isostatic pressing failed to improve the creep life due to the in situ annealing effect. Excellent adhesion of the particles to the matrix, and a large number of reinforcing particles, retarded the crack growth due to creep. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：104 / 109

页数：6

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