摘要
为了研究TiC作为增强颗粒强化高铬钢的显微组织和耐磨性能，运用原位合成工艺，成功地制备出微米级的TiC颗粒强化高铬钢材料。TiC颗粒尺寸在3～10μm之间，均匀分布于强化钢基体组织中，与基体结合良好。经淬火和回火处理后，TiC颗粒强化高铬钢的显微组织由回火马氏体，TiC和M23C6型碳化物组成。TiC颗粒的引入改善了铸锭的枝晶组织，大幅度提高了水润滑条件下的高铬钢的耐磨损性能。与工业上使用的导卫高铬钢材料相比，TiC强化高铬钢的耐磨性提高了3倍以上。
TiC strengthened high chromimn stainless steel is fabricated by in-situ reaction technology during high temperature melting. The results show that TiC particles present nubby morphology and uniform distribution, the size of which is between 3 - 10 μm. There is no reunited appearing in the microstructure. Compared with the microstructure of stainless steel, the dendrite can not be observed and there are martensite and undissolved carbides with TiC additions. Under the water-lubricated condition, the wear resistance of TiC strengthened high chromium stainless steel has been improved 3 times compared with that of industrial high chromium stainless steel.
出处
《中国材料进展》
CAS
CSCD
2009年第9期79-83,共5页
Materials China
基金
国家863计划项目(2007AA03Z508)
