TiNiCu干滑动磨损机理  

Dry Sliding Wear Mechanism in a TiNiCu Alloy

作　　者：徐建军 王德国[2] 郭锦芳 崔立山[2] 寇亚明 

机构地区：[1]有研亿金新材料股份有限公司,北京100088 [2]北京石油大学,北京102200

出　　处：《稀有金属》2002年第2期112-115,共4页Chinese Journal of Rare Metals

摘　　要：研究了干滑动磨损条件下TiNiCu合金的磨损行为。TiNiCu合金的耐磨性能优于TiNiFe及TiNi合金。TiNiCu合金主要存在三种磨损机理 :摩擦副接触表面的变形粘着作用导致的粘着磨损机理 ;38CrMoAl表面上硬的微凸体及TiNiCu表面上脱落的磨屑在TiNiCu表面上造成的磨粒磨损机理 ;循环变化的接触应力产生的表面疲劳磨损机理。The dry sliding wear behaviors of TiNiCu shape memory alloy against 38CrMoAl were studied. Experimental results indicate that the TiNiCu alloy exhibits a better wear resistance than that of the TiNiFe and TiNi alloys. Three main wear mechanisms were found to make important contributions to the wear behaviors of TiNiCu alloy. The adhesive mechanism is induced by plastic and adhesive action on the contact surface. The abrasion is led by the slide of the rigid little protrusion of 38CrMoAl and the fragments of TiNiCu alloy. The surface fatigue is induced by cyclic stress.

关 键 词：TINICU合金 干滑动磨损 粘着磨损 磨粒磨损 表面疲劳磨损 形状记忆合金 

分 类 号：TG139.6[一般工业技术—材料科学与工程] TG115.58[金属学及工艺—合金]