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选用 Ti6Al4V 合金作为基体材料,并对其进行 N+注入以及非平衡磁控溅射 TiN 膜制得两种改性试样,借助 Phillips X’Pert型 X 射线衍射仪、扫描电子显微镜(SEM)及台阶仪等表征试样及考察改性层的冲击磨损行为,研究认为:在反复冲击载荷作用下,两试样均出现了疲劳磨损现象,但 N+注入试样的磨损机制主要是点蚀及疲劳剥落;而 TiN 膜的磨损机制主要是剥层失效并伴有一定的磨粒磨损;试样的抗冲击磨损性能受多因素制约,如膜层硬度,膜-基结合强度、膜层韧性等。
Ti6Al4V alloy was selected as the matrix material, and two kinds of modified samples were prepared by N + implantation and unbalanced magnetron sputtering TiN film. The samples were characterized by Phillips X’Pert type X-ray diffractometer, scanning electron microscope (SEM) Instrument and so on, and studies the impact wear behavior of the modified layer. It is considered that fatigue wear phenomenon occurs in both specimens under repeated impact loads, but the wear mechanism of N + injection specimens is mainly pitting corrosion and fatigue spalling The wear mechanism of TiN film is mainly due to the delamination failure accompanied by certain abrasive wear. The impact wear resistance of the sample is controlled by many factors, such as film hardness, film-substrate bonding strength and film toughness.