THE STRUCTURE OF CONSTITUTIVE LAWS FOR THE SINTERING OF FINE-GRAINED MATERIALS

被引:100
作者
COCKS, ACF
机构
[1] Engineering Department, Cambridge University, Cambridge, CB2 1PZ England, Trumpington Street
来源
ACTA METALLURGICA ET MATERIALIA | 1994年 / 42卷 / 07期
关键词
D O I
10.1016/0956-7151(94)90299-2
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This paper examines the general structure of constitutive laws for the sintering of fine grained materials for situations where power-law creep and grain-boundary diffusion are the dominant mechanisms of deformation and densification. The description of grain-boundary diffusion accepts an interface reaction. Constitutive laws for general multiaxial stress states are expressed in terms of scalar potential functions. Bounds to the potential are obtained which take into account the coupling between power-law creep and diffusion.
引用
收藏
页码:2191 / 2210
页数:20
相关论文
共 32 条
[1]   PRACTICAL APPLICATIONS OF HOT-ISOSTATIC PRESSING DIAGRAMS - 4 CASE STUDIES [J].
ARZT, E ;
ASHBY, MF ;
EASTERLING, KE .
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1983, 14 (02) :211-221
[2]  
ARZT E, 1983, ACTA METALL, V21, P149
[3]  
Ashby M. F., 1990, BACKGROUND READING H
[4]   ON INTERFACE-REACTION CONTROL OF NABARRO-HERRING CREEP AND SINTERING [J].
ASHBY, MF .
SCRIPTA METALLURGICA, 1969, 3 (11) :837-&
[5]   INELASTIC DEFORMATION OF POROUS MATERIALS [J].
COCKS, ACF .
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 1989, 37 (06) :693-715
[6]   INTERFACE REACTION CONTROLLED CREEP [J].
COCKS, ACF .
MECHANICS OF MATERIALS, 1992, 13 (02) :165-174
[7]   CREEP CONSTITUTIVE-EQUATIONS FOR DAMAGED MATERIALS [J].
COCKS, ACF ;
LECKIE, FA .
ADVANCES IN APPLIED MECHANICS, 1987, 25 :239-294
[8]  
COCKS ACF, 1993, CREEP ENG MATERIALS, V5, P41
[9]  
COCKS ACF, IN PRESS MECH MATER
[10]  
Drucker D. C., 1962, Q APPL MATH, V20, P79