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首页> 外文期刊>ISIJ international >In situ synthesis of TiB2 particulate locally reinforced steel matrix composite by the self-propagating high-temperature synthesis reaction of Al-Fe-Ti-B system during casting
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In situ synthesis of TiB2 particulate locally reinforced steel matrix composite by the self-propagating high-temperature synthesis reaction of Al-Fe-Ti-B system during casting

机译:Al-Fe-Ti-B体系在铸造过程中的自蔓延高温合成反应原位合成TiB2颗粒局部增强钢基复合材料

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摘要

In-situ TiB2 particulate locally reinforced steel matrix composites were successfully fabricated by the selfpropagating high-temperature synthesis (SHS) reaction of 10Al-20Fe-Ti-B and 40Al-20Fe-Ti-B systems, respectively, in the molten high chromium alloy steel during casting. Microstructure analysis of the composite showed that the interface bonding between the matrix and locally reinforced region is very good and the locally reinforced region consists of three different regions, i.e. the Fe-rich region, the fine dispersion of TiB2 particulates region and the larger TiB2 particulates region. The wear test showed that the wear resistance of the locally reinforced regions of the composites is higher than that of the steel matrix.
机译:在熔融高铬合金中,分别通过10Al-20Fe-Ti-B和40Al-20Fe-Ti-B系统的自蔓延高温合成(SHS)反应,成功制备了原位TiB2颗粒局部增强钢基复合材料。铸钢。复合材料的微结构分析表明,基体与局部增强区域之间的界面结合非常好,局部增强区域由三个不同区域组成,即富铁区域,TiB2微粒区域的细分散和较大的TiB2微粒区域。磨损试验表明,复合材料局部增强区域的耐磨性高于钢基体。

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