Torsional fretting wear of a biomedical Ti6Al7Nb alloy for nitrogen ion implantation in bovine serum

CORC > 兰州化学物理研究所 > 中国科学院兰州化学物理研究所 > 固体润滑国家重点实验室

	Torsional fretting wear of a biomedical Ti6Al7Nb alloy for nitrogen ion implantation in bovine serum
	Cai, Zhen-bing 1; Zhang GA(张广安)2 ; Zhu, Yong-kui 1; Shen, Ming-xue 1; Wang LP(王立平)2 ; Zhu, Min-hao 1
刊名	Tribology International
	2013
卷号	59 页码:312-320
关键词	Fretting wear Torsional fretting Plasma immersion ion implantation Titanium alloy
ISSN号	0301-679X
英文摘要	Ti6Al7Nb is a high-strength titanium alloy used in replacement hip joints that possesses the excellent biocompatibility necessary for surgical implants. Ti6Al7Nb treated with nitrogen gas (N₂) plasma immersion ion implantation-deposition (PIII-D) was investigated. Torsional fretting wear tests of untreated and nitrogen-ion-implanted Ti6Al7Nb alloys against a Zr₂O ball (diameter 25.2 mm) were carried out under simulated physiological conditions (serum solution) in a torsional fretting wear test rig. Based on the analyses of the frictional kinetics behavior, the observation of 3D profiles, SEM morphologies and surface composition analyses, the damage characteristics of the surface modification layer and its substrate are discussed in detail. The influence of nitrogen ion density on the implantation and torsional angular displacement amplitudes were investigated. The results indicated that ion implantation layering can improve resistance to torsional fretting wear and thus has wide potential application for the prevention of torsional fretting damage in artificial implants. The damage mechanism prevented by the ion implantation layer on the Ti6Al7Nb alloy is a combination of oxidative wear, delamination and abrasive wear. An increase in ion implantation concentration inhibited detachment by delamination.
学科主题	材料科学与物理化学
收录类别	SCI
资助信息	the Open Foundation of State Key Laboratory of Solid Lubrication (0903);Specialized Research Fund for the Doctoral Program of Higher Education of China (20100184120002)
语种	英语
WOS记录号	WOS:000315243000036
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/18181]
专题	兰州化学物理研究所_固体润滑国家重点实验室
作者单位	1.SW Jiaotong Univ, Minist Educ, Key Lab Adv Technol Mat, Tribol Res Inst, Chengdu 610031, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Cai, Zhen-bing,Zhang GA,Zhu, Yong-kui,et al. Torsional fretting wear of a biomedical Ti6Al7Nb alloy for nitrogen ion implantation in bovine serum[J]. Tribology International,2013,59:312-320.
APA	Cai, Zhen-bing,Zhang GA,Zhu, Yong-kui,Shen, Ming-xue,Wang LP,&Zhu, Min-hao.(2013).Torsional fretting wear of a biomedical Ti6Al7Nb alloy for nitrogen ion implantation in bovine serum.Tribology International,59,312-320.
MLA	Cai, Zhen-bing,et al."Torsional fretting wear of a biomedical Ti6Al7Nb alloy for nitrogen ion implantation in bovine serum".Tribology International 59(2013):312-320.