Structure and tribological performance of helium-implanted layer on Ti6Al4V alloy by plasma-based ion implantation

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 宁波所知识产出

	Structure and tribological performance of helium-implanted layer on Ti6Al4V alloy by plasma-based ion implantation
	Li JL ; Ma XX ; Sun MR ; Song ZL
刊名	Nuclear Instruments and Methods in Physics Research B
	2009
期号	267 页码:482–486
关键词	Plasma-based ion implantation of helium Ti6Al4V alloy Structure Nano-hardness Tribological performance
合作状况	国内
中文摘要	The present paper concentrates on tribological performance of Ti6Al4V alloy treated by helium plasmabased ion implantation with a voltage of -30 kV and a dose range of 1, 3, 6 and 9 ×1017 He/cm2. X-ray photoelectron spectroscopy (XPS), Transmission electron microscopy (TEM) and Atomic force microscopy (AFM) were used to characterize composition, structure and surface morphology, respectively. The variation of hardness with indenting depth was measured and tribological performance was evaluated. The uniform cavities with a diameter of several nanometers are formed in the helium-implanted layer on Ti6Al4V alloy. Helium implantation enhances the ingress of O, C and N and produces TiO2, Al2O3, TiC, TiN in the near surface layer on their removal from the vacuum and exposure to normal atmospheric condition. In the near surface layer, the hardness of implanted samples increases remarkably comparing with the untreated sample, and the maximum peak increasing factor is up to 2.9 for the sample implanted with 3 ×1017 He/cm2. A decrease in surface roughness, resulting from the leveling effect of sputtering and re-deposition during implantation, has also been observed. Comparing with the untreated sample, implanted samples have a good wear resistance property. And the maximum increase in wear resistance reaches over seven times that of the untreated one for the sample implanted with 3×1017 He/cm2. The wear mechanism of implanted samples is abrasive-dominated.
收录类别	SCI
语种	英语
公开日期	2009-12-25
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/121]
专题	宁波材料技术与工程研究所_宁波所知识产出
推荐引用方式 GB/T 7714	Li JL,Ma XX,Sun MR,et al. Structure and tribological performance of helium-implanted layer on Ti6Al4V alloy by plasma-based ion implantation[J]. Nuclear Instruments and Methods in Physics Research B,2009(267):482–486.
APA	Li JL,Ma XX,Sun MR,&Song ZL.(2009).Structure and tribological performance of helium-implanted layer on Ti6Al4V alloy by plasma-based ion implantation.Nuclear Instruments and Methods in Physics Research B(267),482–486.
MLA	Li JL,et al."Structure and tribological performance of helium-implanted layer on Ti6Al4V alloy by plasma-based ion implantation".Nuclear Instruments and Methods in Physics Research B .267(2009):482–486.