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	Tribocorrosion behaviors of CrN coating in 3.5 wt% NaCl solution
	Chen, Qiang1; Cao, Yongzhi2,3; Xie, Zhiwen2; Chen, Tian4; Wan, Yuanyuan1; Wang, He2; Gao, Xu2; Chen, Yan2; Zhou, Yanwen2; Guo, Yuanyuan2
	2017-01-31
摘要	Chromium nitride coatings are synthesized on the stainless steels by plasma immersion ion implantation and deposition. The microstructure and tribocorrosion behaviors of the as-deposited coatings are characterized by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, transmission electron microscopy, reciprocating-sliding tribometer and electrochemical testing. The results show that the CrN coatings have a typical columnar growth structure consisting of face-centered cubic crystals. The CrN coatings greatly enhance the corrosion resistance and wear resistance of the stainless steel. However, frictional forces induce numerous micro-cracks which act as the diffusion channels for NaCl solution. Multi-scale Cl ion corrosion occurs simultaneously during the tribocorrosion and a force-corrosion synergy interaction induces the multi-degradation (e.g., intersecting cracks and layer delamination) of the CrN coating. The synergistic damage mechanisms of wear and corrosion are systematically discussed. (C) 2016 Elsevier B.V. All rights reserved.
关键词	Stainless steel CrN coating Microstructure Tribocorrosion Plasma immersion ion implantation and deposition
DOI	10.1016/j.tsf.2016.12.023
发表期刊	THIN SOLID FILMS
ISSN	0040-6090
卷号	622页码:41-47
通讯作者	Xie, ZW (reprint author), 185 Qianshan Mid Rd, Anshan, Liaoning, Peoples R China.
收录类别	SCI
WOS记录号	WOS:000393010200007
语种	英语