【作者】 李振华； 程先华；

【Author】 Li Zhen-hua~(1,2) CHENG Xian-Hua~1 1.School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200030; 2.School of Mechanical Engineering,Zhejiang Ocean University,Zhoushan 316000

【机构】 上海交通大学机械与动力工程学院；

【摘要】 研究了油润滑条件下等径弯角挤压(ECAE)工艺处理对钛镍合金摩擦学性能的影响,并利用扫描电子显微镜(SEM)对钛镍合金材料磨损表面进行了观察和分析。结果表明：ECAE 工艺处理钛镍合金材料的摩擦系数和磨损量比未经处理钛镍合金材料的低。未经处理钛镍合金材料表面磨损形式为明显的磨粒磨损和表面疲劳磨损,而 ECAE 工艺处理钛镍合金材料表面磨损形式为轻微的磨粒磨损。更多还原

【Abstract】 The effect of equal channel angular extrusion(ECAE)treatment on tribological behavior of of TiNi alloy was investigated. The worn surfaces were observed and analyzed using a scanning electron microscope(SEM).Experimental results revealed that the friction and wear properties of TiNi alloy treated by ECAE were better than those of untreated TiNi alloy.Serious abrasive wear and surface fatigue wear occurred on the worn surfaces of untreated TiNi alloy,in contrast,only slight adhesive wear was observed on the worn surface of TiNi alloy treated by ECAE.更多还原