Ni元素对原位自生TiCp／Fe复合材料组织和性能影响的研究  

Effects of Ni on Structure and Properties of In Situ Synthesized TiC_p /Fe Composites

作　　者：范应光[1] 孙国进[2] 黄思娟[3] 陈锡广[3] 苏广才[3] 

机构地区：[1]广西机电职业技术学院,广西南宁530007 [2]北京航空航天大学材料科学与工程学院,北京100191 [3]广西大学材料科学与工程学院,广西南宁530004

出　　处：《铸造》2012年第1期47-50,56,共5页Foundry

摘　　要：探讨了Ni元素对TiCp/Fe复合材料组织结构、力学性能及有害相的作用。结果表明,Ni元素对抑制TiCp/Fe复合材料中的石墨有害相有明显的作用,可以显著减少,甚至完全消除TiCp/Fe复合材料中的片状石墨有害相。同时,在Ni元素合金化作用下,TiC增强相数量增多,珠光体片层间距变小,这有效提高了TiCp/Fe复合材料的力学性能。Experiment was carried out to study the effects of Ni on structures, mechanical properties and harmful phases of TiC,/Fe composite. The results show that Ni can obviously restrain the harmful phase of flake graphite in the TiCp/Fe composite; the flake graphite phase in TiCp/Fe composites is significantly reduced and even completely eliminated. At the same time, number of TiC reinforced phase is increased and lamellar spacing of pearlitc is decreased due to the alloying action of Ni, which effectively improves the mechanical properties of the composite.

关 键 词：TICP/FE复合材料 原位自生 片状石墨 

分 类 号：TB331[一般工业技术—材料科学与工程]