摘要
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 Ti C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 Ti C颗粒大小为 1～ 6μm,其体积分数为2 5.86%。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 。
The surface layer with a thickness of 3mm of Fe matrix composite material reinforced with TiC particles was formed in situ on the surface of cast steel compontent by rapid liquid-phase sintering with a new cast-sintering technology.The research shows that the concentration of Ti in the sintered layer is balanced and high,while the other elements distributed gradationally.The volume fraction of the in-situ produced TiC particles with size of 1-6μm is 25.86%.And Cr carbide exists in the composite layer,too.The surface composite layer have superior wear resistance under the condition of heavy-loading dry sliding friction.
出处
《兵器材料科学与工程》
CAS
CSCD
北大核心
2000年第6期3-8,共6页
Ordnance Material Science and Engineering
基金
国家教委留学回国基金
关键词
金属基复合材料
颗粒增强
显微组织
耐磨性
metal-matrix composite,particle-reinforcement,microstructure,wear resistance
