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Interface Reaction In Sic Reinforced Al3Ti-Based Intermetallic Matrix Composites

Published online by Cambridge University Press:  01 January 1992

Jian Wang ,
Qian Wang ,
Shipu Chen ,
Jian Sun  and
Gengxiang Hu
Jian Wang
Affiliation:
Department of Materials Science, Shanghai Jiao Tong University, Shanghai 200030, China
Qian Wang
Affiliation:
Department of Materials Science, Shanghai Jiao Tong University, Shanghai 200030, China
Shipu Chen
Affiliation:
Department of Materials Science, Shanghai Jiao Tong University, Shanghai 200030, China
Jian Sun
Affiliation:
Department of Materials Science, Shanghai Jiao Tong University, Shanghai 200030, China
Gengxiang Hu
Affiliation:
Department of Materials Science, Shanghai Jiao Tong University, Shanghai 200030, China
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Abstract

The Al3Ti-based Ll2 intermetallic alloy Al66Fe9Ti25 has shown low density, high oxidation resistance, good strength and appreciable compression ductility at room temperature. To explore the approach of combined toughening and strengthening of this alloy, composites are being studied. The interface reactions between Al66Fe9Ti25 matrix and SiC reinforcement material during different fabrication processes were investigated using SEM, EDS, EPA and X-ray diffraction analyses. The extent of reaction was determined and the reaction products were identified. It was found that SiC is chemically incompatible with the Al66Fe9Ti25 matrix, strong interfacial reactions occurred during fabrication and the formation of ternary compounds leads to the deterioration of the matrix alloy.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 288: Symposium L – High-Temperature Ordered Intermetallic Alloys V , 1992 , 1105
Copyright
Copyright © Materials Research Society 1995

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References

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