YIELD BEHAVIOR OF METAL-POWDER ASSEMBLAGES

被引：59

作者：

BROWN, S

ABOUCHEDID, G

机构：

[1] Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge

来源：

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS | 1994年 / 42卷 / 03期

关键词：

D O I：

10.1016/0022-5096(94)90024-8

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

WE PRESENT EXPERIMENTAL data on the compaction of powder metals using two powder systems with different powder particle morphologies. The data have been collected using biaxial and triaxial compaction systems that load powders radially in deformation space. Our results indicate that several current models proposed for powder metal compaction do not represent actual constitutive behavior. Additionally, the powders tested demonstrate a strong dependence on powder morphology and a possible associated dependence on interparticle cohesion. This dependence on cohesion may necessitate the use of an additional state variable beyond those of relative density and particle hardening ordinarily used to represent powder yield behavior.

引用

页码：383 / 399

页数：17

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