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	Tribocorrosion Failure Mechanism of TiN/SiOx Duplex Coating Deposited on AISI304 Stainless Steel
	Chen, Qiang1; Xie, Zhiwen2; Chen, Tian3; Gong, Feng4
	2016-12-01
摘要	TiN/SiOx duplex coatings were synthesized on AISI304 stainless steel by plasma immersion ion implantation and deposition (PIIID) followed by radio frequency magnetron sputtering (RFMS). The microstructure and tribocorrosion failure behaviors of the duplex coatings were investigated by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, atomic force microscopy, reciprocating-sliding tribometer, and electrochemical tests. The as-deposited duplex coating had a two-layered columnar growth structure consisting of face-centered cubic TiN and amorphous SiOx. Sliding tests showed that the TiN interlayer had good adhesion with the substrate, but the SiOx layer suffered from severe delamination failure. Friction force induced a number of micro-cracks in the coating, which provided channels for the diffusion of NaCl solution. The tribocorrosion test showed that the duplex coating exhibited a lower wear-performance in NaCl solution than in ambient atmosphere. Multi-scale chloride ion corrosion occurred simultaneously and substantially degraded the bonding strength of the columnar crystals or neighboring layers. Force-corrosion synergy damage eventually led to multi-degradation failure of the duplex coating. The presented results provide a comprehensive understanding of the tribocorrosion failure mechanism in coatings with duplex architecture.
关键词	TiN/SiOx duplex coating corrosion tribocorrosion force-corrosion synergistic effect multi-degradation failure
DOI	10.3390/ma9120963
URL	查看原文 ; 查看原文
发表期刊	MATERIALS
ISSN	1996-1944
卷号	9期号:12页码:12
通讯作者	Xie, ZW (reprint author), Univ Sci & Technol Liaoning, Sch Mech Engn & Automat, Anshan 114051, Peoples R China. ; Gong, F (reprint author), Shenzhen Univ, Guangdong Prov Key Lab Micro Nano Optomechatron E, Shenzhen 518060, Peoples R China.
收录类别	SCI
WOS记录号	WOS:000390953400009
语种	英语