化学成分对原位TiC_p/Fe复合材料组织和性能的影响

来源期刊：中国有色金属学报1999年第2期

论文作者：严有为 魏伯康 林汉同 梅志

文章页码：225 - 230

关键词：TiC_p/Fe复合材料 原位反应 化学成分

Key words：TiC_p/Fe composite ; in-situ reaction ; chemical compostion

摘    要：系统地研究了化学成分对原位TiC_p/Fe复合材料组织和性能的影响，并确定了该材料的最佳化学成分。结果表明：Ti是影响复合材料组织中TiC颗粒形核率的关键因素, 而C主要影响组织中TiC颗粒的尺寸；在合金熔体中，加入一定量的Si有利于TiC颗粒的形成，而Mn主要用来细化珠光体基体。

Abstract: The effects of chemical composition on microstructures and mechanical properties of in-situ TiC_p/Fe composites have been studied systematically, and the optimum chemical composition of this composite has also been determined. The results showed that Ti is the key factor affecting the nucleating rate of TiC particulates, and C mainly affects the sizes of TiC particulates in the composite microstructures. Adding proper Si content to alloy melt is favourable to form TiC particulates, and Mn is mainly used to refine pearlite matrix.