新型奥氏体不锈钢的耐磨性研究  

Study of a New Type Austenitic Stainless Steel with Better Wear Resistance

作　　者：赖志伟[1] 吴俊良[1] 文玉华[1] 李宁[1] 王兆昌[1] 

机构地区：[1]四川大学制造科学与工程学院,四川成都610065

出　　处：《摩擦学学报》2009年第2期128-133,共6页Tribology

基　　金：新世纪优秀人才支持计划资助项目(NCET-06-0793)

摘　　要：为了解决传统奥氏体不锈钢耐磨性较差的问题,本文设计了一种新型的Fe-Mn-Si-Cr-Ni-C奥氏体不锈钢,并研究了其耐磨性能和耐腐蚀性能.研究表明:Fe-Mn-Si-Cr-Ni-C奥氏体不锈钢在干摩擦和油润滑条件下均具有比1Cr18Ni9Ti奥氏体不锈钢更好的耐磨性,在NaCl中耐蚀性不如1Cr18Ni9Ti不锈钢,但在NaOH中优于1Cr18Ni9Ti不锈钢.Fe-Mn-Si-Cr-Ni-C奥氏体不锈钢应力作用下发生的应力诱发γ→ε马氏体相变是其具有较高耐磨性的原因.To solve the problem that traditional austenitic stainless steels have poor wear resistance, a new type of Fe - Mn - Si - Cr - Ni - C austenitic stainless steel was designed and its properties of wear and corrosion were studied. Fe - Mn - Si - Cr - Ni - C austenitic stainless steel exhibited better wear resistance than 1Cr18Ni9Ti steel did both in dry friction and oil lubrication. Fe - Mn - Si - Cr - Ni - C austenitic stainless steel exhibited better wear resistance than 1 Cr18Ni9Ti steel did in NaOH solution, but poor in NaCl solution. Stress -induced γ-ε martensitic phase transformation of new Fe - Mn - Si - Cr - Ni - C austenitic stainless steel during friction resulted in better wear resistance.

关 键 词：奥氏体不锈钢 Fe—Mn—Si—Cr—Ni—C不锈钢 耐磨性 应力诱发γ-ε马氏体相变 耐蚀性 

分 类 号：TG139.6[一般工业技术—材料科学与工程]