运用新的铸造烧结技术,在铸钢件表面实现快速液相烧结,原位生成了厚度为3mm的TiC颗粒增强铁基表面复合材料层.研究表明烧结层中由表及里,Ti始终保持较高浓度,而其它合金元素则呈梯度分布.原位生成的TiC颗粒太小为1～6um,其体积分数为25.86%.复合层的组织中还含有铬的碳化物,在重载干滑动摩擦条件下,具有很好的耐磨性.
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