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中文摘要：
采用动态电流直加热制备,提出了分段加热工艺,研究了陶瓷颗粒增强铁基复合材料的磨损性能和磨损机理.结果表明：四种不同颗粒增强铁基复合材料的磨损量均在#45钢磨损量的15%以下;Ti（C,N）对改善材料磨损性能作用最强,表明与基体界面可经受一定变形量的强化粒子最有利于提高耐磨性;复合材料的耐磨性均在强化粒子体积分数为10%时达到最好.铁基复合材料表现出高摩擦系数时耐磨性反而更好的特性,在耐磨材料应用方面显示出巨大优势.
英文摘要：
A number of iron matrix composites reinforced by different types of ceramic particles were prepared by the process of two-step dynamic electric current heating and sectional hot pressing to investigate the effects of reinforcing particles on the wear behavior of the composites.The results showed that the wear loss of all those iron matrix composites is lower than 15% of that of the 45 carbon steel which is widely used in China.The Ti（C,N） particles function as the strongest influencing factor on improving the wearability in the four ceramic particles used,i.e.,the reinforced ceramic particles which are endurable to a certain deformation on the interfaces between them and matrix are most beneficial to improving wearability.On the other hand,the wearability of all those composites come up to their maximum if the volume fraction of reinforcing particles is 10%,and the wearability becomes better if the friction coefficient of the composites is high.Such features make the composites superior in many application fields,such as brake making.
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