Ti6Al4V基体两种改性层的冲击磨损行为分析(英文)  

Impact Wear Behaviors of Two Modified Layers in Ti6Al4V Substrate

作　　者：王艳[1] 

机构地区：[1]西华大学,四川成都610039

出　　处：《稀有金属材料与工程》2013年第7期1328-1331,共4页Rare Metal Materials and Engineering

基　　金：Open Research Fund of Key Laboratory of Special Materials and Preparation Technology Xihua University (Szjj2011-011);The Key Scientific Research Fund Project of Xihua University(z1220114);Sichuan Province Science and Technology Support Program(11208223)

摘　　要：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。Ti6A14V was chosen as the substrate material, and two modified layers were made by the N＋ implantation process and Unbalanced Magnetron Sputtering （UMS） TiN method. The characterization and impact wear behaviors of two modified specimens were studied with XRD, SEM, step profiler etc. It is found that the fatigue wear is the common failure mode of two specimens under repeated impact condition, but the failure mechanism of the N＋ implantation specimens is mainly pitting and fatigue flake, and that of UMS TiN is mostly delaminating failures associated with abrasive wear. The test indicates that the impact wear performance of the specimens are determined by multiple factors such as surface hardness, film-base bonding strength, film roughness.

关 键 词：N+注入 非平衡磁控溅射 TIN膜 冲击磨损 磨损行为 

分 类 号：TG174.4[金属学及工艺—金属表面处理]