Effect of nitrogen on biocorrosion behavior of high nitrogen nickel-free stainless steel in different simulated body fluids

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	Effect of nitrogen on biocorrosion behavior of high nitrogen nickel-free stainless steel in different simulated body fluids
	P. Wan; Y. B. Ren; B. C. Zhang; K. Yang
	2012
发表期刊	Materials Science & Engineering C-Materials for Biological Applications
ISSN	0928-4931
卷号	32 期号:3 页码:510-516
摘要	The aim of this research is to study the biocorrosion behavior of high nitrogen nickel-free stainless steel (HNS) with different nitrogen content, also with comparison to AISI 317L, in three different simulated body fluids. The comparison was focused on the influence of nitrogen in HNS and different protein solutions on the passive behavior using electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV) and capacitance measurements (Mott-Schottky approach). The study revealed that HNS possessed thicker and more protective passive films with increase of nitrogen, which could improve the biocorrosion resistance and biocompatibility after implanted. The passive films behaved as n-type semiconductors and showed a decrease in donor density by nitrogen addition, thus indicating more beneficial for haemocompatibility. The electrochemical behavior recorded in the albumin and fibrinogen solutions revealed protein played an important role in the biocorrosion of HNS, which could result in the breakout of passive films and enhance the corrosion rate by means of chelation. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.
部门归属	[wan, peng; ren, yibin; zhang, bingchun; yang, ke] chinese acad sci, inst met res, shenyang 110016, peoples r china.;ren, yb (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china.;ybren@imr.ac.cn
关键词	High Nitrogen Stainless Steel Eis Cyclic Voltammetry Mott-schottky Plots Protein Adsorption In-vitro Corrosion Passive Films Oxide-films Semiconducting Properties Electronic-structure Aisi 304-stainless-steel Electrochemical-behavior Impedance Spectroscopy Adsorption Behavior Cyclic Voltammetry
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文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60272
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	P. Wan,Y. B. Ren,B. C. Zhang,et al. Effect of nitrogen on biocorrosion behavior of high nitrogen nickel-free stainless steel in different simulated body fluids[J]. Materials Science & Engineering C-Materials for Biological Applications,2012,32(3):510-516.
APA	P. Wan,Y. B. Ren,B. C. Zhang,&K. Yang.(2012).Effect of nitrogen on biocorrosion behavior of high nitrogen nickel-free stainless steel in different simulated body fluids.Materials Science & Engineering C-Materials for Biological Applications,32(3),510-516.
MLA	P. Wan,et al."Effect of nitrogen on biocorrosion behavior of high nitrogen nickel-free stainless steel in different simulated body fluids".Materials Science & Engineering C-Materials for Biological Applications 32.3(2012):510-516.