Corrosion behavior of PIRAC nitrided Ti-6Al-4V surgical alloy

被引：0
|
作者：
D. Starosvetsky
A. Shenhar
I. Gotman
机构：
[1] Technion,Department of Materials Engineering
来源：
Journal of Materials Science: Materials in Medicine | 2001年 / 12卷
关键词：
Nitrided; Wear Resistance; Titanium Nitride; Excellent Corrosion Resistance; Excellent Adhesion;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Hard titanium nitride (TiN) coatings were obtained on the surface of Ti-6Al-4V alloy using an original PIRAC nitriding method, based on annealing the samples under a low pressure of monatomic nitrogen created by selective diffusion of N from the atmosphere. PIRAC nitrided samples exhibited excellent corrosion resistance in Ringer's solution in both potentiodynamic and potentiostatic tests. The anodic current and metal ion release rate of PIRAC nitrided Ti-6Al-4V at the typical corrosion potential values were significantly lower than those of the untreated alloy. This, together with the excellent adhesion and high wear resistance of the TiN coatings, makes PIRAC nitriding an attractive surface treatment for Ti-6Al-4V alloy surgical implants.
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页码：145 / 150
页数：5
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