Fe-Mn-Si形状记忆合金的摩擦磨损特性  

The Friction Wear Characteristics of Fe-17Mn-5Si-10Cr-5Ni Shape Memory Alloy

作　　者：王金刚[1] 林成新[2] 王桂新[3] 吴彦东[1] 

机构地区：[1]河北工业大学机械工程学院,天津300130 [2]大连海事大学机电与材料工程学院,辽宁大连116026 [3]河北工业大学材料科学与工程学院,天津300130

出　　处：《润滑与密封》2006年第10期101-103,109,共4页Lubrication Engineering

基　　金：河北省自然科学基金资助项目(503038);河北省重点学科-车辆工程资助项目

摘　　要：制备了铁基形状记忆合金Fe-17Mn-5Si-10Cr-5N i,通过磨损试验、XRD分析、SEM观察等研究了该合金在干摩擦和油摩擦下的摩擦磨损特性,并和高锰钢的耐磨性进行了对比。研究表明,在干摩擦条件下,该合金呈典型粘着磨损特征,磨损表面没有ε马氏体,其耐磨性较差,低于高锰钢;在油摩擦条件下,该合金呈磨粒磨损特征,磨损表面存在较多的ε马氏体,耐磨性较好,高于高锰钢;Fe-17Mn-5Si-10Cr-5N i形状记忆合金油摩擦时耐磨性好的主要原因在于摩擦过程中的应力诱发γ→ε马氏体相变。e-17Mn-SSi-10Cr-SNi shape memory alloy was prepared, its friction wear characteristics were studied by the means of wear experiments, XRD analysis, SEM observation in dry and oily friction, compared with high-Mn steel. The resuits show that, in dry friction there isn＇ t ε Martensite in the surface of SMA alloy, the anti-wear characteristics are worse than that of high-Mn steel and its friction mechanism is adhesive wear;in oily friction there exists much ε Martensite in the surface of SMA alloy, the anti-wear characteristics are much better than that of high-Mn steel and its friction mechanism is abrasive wear. The good wear resistance of Fe-17Mn-5Si-10Cr-SNi shape memory alloy in oily friction mainly attributes to stress-induced γ→ε Martensitic transformation during the friction.

关 键 词：形状记忆合金 摩擦 磨损 应力诱发 马氏体相变 

分 类 号：TG139.6[一般工业技术—材料科学与工程]