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用熔铸工艺过程中的原位反应合成方法制备了含 φ(TiC)为 5 %颗粒增强的H13钢基复合材料 .实验结果表明 ,用本文工艺制备的复合材料工艺性能优良 ,易于加工成形 .显微组织中TiC颗粒分布均匀 ,没有出现颗粒的团聚及由于TiCP颗粒引入而形成的组织缺陷 .TiC颗粒的加入能有效地提高材料的常温、高温强度和耐磨性能 ,但在一定程度上降低了材料的塑性和冲击韧性
The H13 steel matrix composites reinforced with φ (TiC) 5% particles were prepared by the in-situ reaction synthesis method during the casting process.The experimental results show that the composites prepared by this method have excellent processability and easy processing. TiC particles distributed evenly in the microstructure, there was no particle agglomeration and the microstructure defects caused by the introduction of TiCP particles.The addition of TiC particles can effectively improve the room temperature, high temperature strength and wear resistance of the material, but to a certain extent, reduced Material plasticity and impact toughness