Corrosion behavior of TiN coated type 316 stainless steel in simulated PEMFC environments

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	Corrosion behavior of TiN coated type 316 stainless steel in simulated PEMFC environments
	M. C. Li; S. Z. Luo; C. L. Zeng; J. N. Shen; H. C. Lin; C. N. Cao
	2004
发表期刊	Corrosion Science
ISSN	0010-938X
卷号	46 期号:6 页码:1369-1380
摘要	The corrosion behavior of TiN coated type 316 stainless steel (SS) was investigated in simulated proton exchange membrane fuel cell environments, i.e. 0.01 M HCl + 0.01 M Na2SO4 solutions bubbled with pure oxygen and hydrogen gases, respectively, by using electrochemical measurement techniques. 316SS substrate can passivate spontaneously in simulated cathode environment, while it is in active state at the corrosion potential in simulated anode environment. TiN coatings have much better corrosion resistance and passivity under both simulated conditions. No significant degradation takes place in TiN coatings under the typical load conditions of fuel cell for 4 h. The loss of small part of coatings occurs during the immersion tests of TiN coatings in the oxygen environment for 1000 h and in the hydrogen environment for 240 h, respectively, but the exposed substrate areas are passivated in both environments. The results reveal that TiN coating can offer 316SS higher corrosion resistance and electric conductivity, and that further effort to improve the coating quality and to evaluate the long-term stability of 316SS/TiN coating systems under simulated conditions are deserved. in addition, the characteristics of corrosion process for TiN coatings on passivatable substrate were discussed in detail. (C) 2003 Elsevier Ltd. All rights reserved.
部门归属	shanghai univ, inst mat, shanghai 200072, peoples r china. met res inst, state key lab corros & protect, shenyang 110016, peoples r china.;li, mc (reprint author), shanghai univ, inst mat, pob 269,149 yanchang rd, shanghai 200072, peoples r china;mouchengli@yahoo.com.cn
关键词	Tin coaTing Stainless Steel Pemfc Bipolar Plate Eis Polymer Fuel-cells Impedance Spectroscopy Eis Bipolar Plate Materials Oxide-films Resistance Coatings Electrolyte Passivation Aluminum Iron
URL	查看原文
WOS记录号	WOS:000221569300004
引用统计	被引频次：244[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/35410
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	M. C. Li,S. Z. Luo,C. L. Zeng,et al. Corrosion behavior of TiN coated type 316 stainless steel in simulated PEMFC environments[J]. Corrosion Science,2004,46(6):1369-1380.
APA	M. C. Li,S. Z. Luo,C. L. Zeng,J. N. Shen,H. C. Lin,&C. N. Cao.(2004).Corrosion behavior of TiN coated type 316 stainless steel in simulated PEMFC environments.Corrosion Science,46(6),1369-1380.
MLA	M. C. Li,et al."Corrosion behavior of TiN coated type 316 stainless steel in simulated PEMFC environments".Corrosion Science 46.6(2004):1369-1380.