USE OF AC IMPEDANCE METHODS TO STUDY THE CORROSION BEHAVIOR OF IMPLANT ALLOYS

被引：15

作者：

BUNDY, KJ

DILLARD, J

LUEDEMANN, R

机构：

[1] Biomedical Engineering Department, Tulane University, New Orleans

来源：

BIOMATERIALS | 1993年 / 14卷 / 07期

关键词：

SURGICAL IMPLANTS; ALLOYS; CORROSION;

D O I：

10.1016/0142-9612(93)90242-T

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The a.c. impedance method is a very useful technique for studying the corrosion behaviour of surgical implant alloys. In this article information is presented on how to efficiently and reliably acquire and analyse experimental data through the use of Nyquist, Bode and R(re) versus omegaR(im) plots. Also, experiments were conducted in which 316L stainless steel specimens were subjected to polarization conditions which caused pitting corrosion. The increased surface area caused by the pitting, inferred from a.c. impedance measurements of specimen capacitance, was found to be well correlated with ASTM standard methods for assessment of pitting.

引用

页码：529 / 536

页数：8

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