NEW SURFACE MODIFICATION FOR TI-6AL-7NB ALLOY - OXYGEN DIFFUSION HARDENING (ODH)

被引：55

作者：

STREICHER, RM

WEBER, H

SCHON, R

SEMLITSCH, M

机构：

[1] SULZERmedica, Department of Medical Engineering

来源：

BIOMATERIALS | 1991年 / 12卷 / 02期

关键词：

TITANIUM ALLOY; SURFACE ENGINEERING; TRIBOLOGY; CORROSION; FATIGUE;

D O I：

10.1016/0142-9612(91)90190-L

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

PVD-TiN coating and N+ implantation of Ti-6Al-7Nb alloy resulted in surface hardening to a depth of less than 3-mu-m. The new oxygen diffusion hardening (ODH) treatment increased the hardness gradually to 50-mu-m. PUD-TiN showed an improvement in the tribological properties, while N+ implantation increased the PE wear rate. The wear rate of the ultrahigh-molecular-weight as well as the friction coefficient were reduced to one-half of the values achieved with the combination of CoCrMo-alloy when paired against the ODH-treated surface. In pairing with ZrO2-containing bone cement the ODH-treated surface showed only a minimal reaction.

引用

页码：125 / 129

页数：5

共 25 条

[1] METALLIC WEAR IN FAILED TITANIUM-ALLOY TOTAL HIP REPLACEMENTS - A HISTOLOGICAL AND QUANTITATIVE-ANALYSIS [J].