PLASMA SPRAY CONSOLIDATION OF HIGH-TEMPERATURE COMPOSITES

被引:37
作者
TIWARI, R
HERMAN, H
SAMPATH, S
GUDMUNDSSON, B
机构
[1] Department of Materials Science and Engineering, State University of New York, Stony Brook
来源
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1991年 / 144卷 / A144期
关键词
Borides - Composite Materials - Mechanical Properties - Intermetallics - Metallic Matrix Composites - Powder Metallurgy - Plasma Applications;
D O I
10.1016/0921-5093(91)90217-B
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Plasma spray processing represents a synthesis of rapid solidification and composite materials technology. In this study, dense deposits of Ni3Al alloy matrix reinforced with TiB2 particles have been fabricated by vacuum plasma spraying (VPS). A uniform distribution of the particles in the matrix has been obtained. The room temperature mechanical properties show significant strengthening due to the presence of the reinforcing particles and also the fine grain size of the matrix. The degree of strengthening is shown to be greater than obtained by other compositing routes. It is apparent that enhanced particle-matrix bonding is obtained by the VPS process. Failure of the composites occurs along the grain boundaries and particle-matrix interfaces.
引用
收藏
页码:127 / 131
页数:5
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