Workability studies on AL-15% SiC powder metallurgy composite during cold upsetting

被引：0

作者：

Ramesh, T. ^{[1
]}

Prabhakar, M. ^{[1
]}

Narayanasamy, R. ^{[2
]}

机构：

[1] Department of Mechanical Engineering, National Institute of Technology

[2] Department of Production Engineering, National Institute of Technology

来源：

International Journal of Materials and Structural Integrity | 2009年 / 3卷 / 01期

关键词：

Aluminium; Metal matrix composite; MMC; Silicon carbide; Triaxial stress state condition; Workability;

D O I：

10.1504/IJMSI.2009.025294

中图分类号：

学科分类号：

摘要：

The workability behaviour of pure aluminium and Al-15% SiC powder metallurgy composites has been studied during cold compaction introducing various sizes of the second phase particles, namely, 120 μm, 65 μm and 50 μm. The matrix material of aluminium of powder particle sizes ranging from -37 μm to 75 μm has been considered. The effect of second phase particle size on the workability of the material composites proposed has been investigated. A micro structural investigation on sintering behaviours of the composite has also been investigated. The enhancement in the densification of the powder compacts during compaction has been observed by means of the presence of voids in the compacts adopting mass constancy principle. The relationship between various stresses against the axial strain has been studied along with the other parameters, such as relative density and various stress ratio parameters, as well as the formability stress index under the uniaxial, the plane and the triaxial stress state conditions. Copyright © 2009, Inderscience Publishers.

引用

页码：28 / 46

页数：18

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