中国物理B ›› 2013, Vol. 22 ›› Issue (5): 56202-056202.doi: 10.1088/1674-1056/22/5/056202
• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇 下一篇
马欣新a b, 郭光伟a c, 唐光泽d, 孙明仁b, 王黎钦e
Ma Xin-Xin (马欣新)a b, Guo Guang-Wei (郭光伟)a c, Tang Guang-Ze (唐光泽)d, Sun Ming-Ren (孙明仁)b, Wang Li-Qin (王黎钦)e
摘要: Nb/Ta multilayer films deposited on Ti6Al4V substrate with Nb and Ta monolayer thicknesses of 30 nm, 120 nm, and 240 nm were irradiated by high current pulse electron beam (HCPEB) to prepare Nb-Ta alloyed layers. The microstructure and the composition of the outmost surface of melted alloyed layers were investigated using transmission electron microscope (TEM) equipped with X-ray energy dispersive spectrometer (EDS) attachment. The Ta content of the alloyed surface layer prepared from the monolayer of thickness 30 nm, 120 nm, and 240 nm was ~ 27.7 at.%, 6.37 at.%, and 0 at.%, respectively. It was found that the Ta content in the alloyed layer plays a dominant role in the microstructure of the films. The hardness and the wear rate of the alloyed layers decrease with the increasing content of Ta in the surface layer.
中图分类号: (Friction, tribology, and hardness)