CAJ | 학술논문

研究了原位合成TiC颗粒增强HT200基铸铁复合材料的工艺、组织和性能，结果表明,在空气中以SHS方法于熔体中合成TiC的制备工艺方法可行性不高，而以Ti-Fe合金形式在熔体中原位合成法可行。原位合成的TiC颗粒细化了材料的组织，减小了珠光体片层间距和石墨长度,改变了石墨形态,从而使材料的强度和硬度大幅提高。磨损试验结果亦显示，TiC颗粒的加入明显地提高了材料的耐磨损性能。
연구료원위합성TiC과립증강HT200기주철복합재료적공예、조직화성능，결과표명,재공기중이SHS방법우용체중합성TiC적제비공예방법가행성불고，이이Ti-Fe합금형식재용체중원위합성법가행。원위합성적TiC과립세화료재료적조직，감소료주광체편층간거화석묵장도,개변료석묵형태,종이사재료적강도화경도대폭제고。마손시험결과역현시，TiC과립적가입명현지제고료재료적내마손성능。
Microstructure and mechanical properties of TiCp reinforced HT200cast iron matrix composite have been investigated. The results show that in-situ reaction to produce TiC particulates in cast iron matrix by adding Ti-Fe alloy into the melt is superior to the combustion synthesis（SHS）in air. The existence of TiC particles refines the microstructure of HT200 matrix, decreases the lamination spaces of pearliest and the graphite length, and changes the graphite morphology. The ultimate strength and wear resistance have also been increased markedly by adding TiC.