INVESTIGATION ON MICROSTRUCTURE OF TiC-Fe CERMETS PREPARED BY SHS/PHIP
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摘要: 对SHS/PHIP技术制备出的TiC-Fe金属陶瓷的微观组织结构进行了分析和研究。结果表明,TiC与Fe之间有一扩散层,随着Fe含量的增加,扩散层厚度和颗粒尺寸减小,且反应趋于不完全,TF40金属陶瓷中发现以石墨为主的板条状组织。在Fe粘结相中发现少量析出相Fe2Ti;TiC晶粒中存在大量位错。
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关键词:
- SHS/PHIP /
- TiC-Fe金属陶瓷 /
- 微观组织
Abstract: The microstructure of TiC-Fe cermets prepared by SHS/PHIP was studied. A thin diffusion layer was found between Fe and TiC. As the Fe content was increased, the thickness of diffusion layer and particle size of TiC were decreased, and the combustion reaction became incomplete since some of the lath structure consisting mainly of C were found in Fe-binder phase of TiC-40Fe. There exists a little of precipitate phase of Fe2Ti in Fe-binder phase. A great deal of dislocation were observed in TiC grains.-
Key words:
- SHS/PHIP /
- TiC-Fe cermets /
- microstructure
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