Steady-state creep in an inclusion bearing material by plastic accommodation

被引：26

作者：

Sato, E

Ookawara, T

Kuribayashi, K

Kodama, S

机构：

[1] Inst Space & Astronaut Sci, Sagamihara, Kanagawa 229, Japan

[2] Shonan Inst Technol, Fujisawa, Kanagawa 251, Japan

来源：

ACTA MATERIALIA | 1998年 / 46卷 / 12期

关键词：

D O I：

10.1016/S1359-6454(98)00119-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The stress relaxation in an inclusion bearing material at high temperatures under an external load has been examined. Independently from the analysis by Mori ct al. (Acta mater., 1997, 45, 429), it has been ascertained that the material reveals steady-stare creep even with only matrix plastic flow (multiaxial power-law creep) operating, through both variational principles analysis and finite element method (FEM). The characteristic of nonuniform stress distribution, which brings about steady-state creep, has been discussed. The dependence of the steady-state creep rate on inclusion aspect ratio and volume fraction has been also obtained through FEM anlaysis. (C) 1998 Acta Metallurgica Inc. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：4153 / 4159

页数：7

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