Mechanical performance and corrosion behavior of TiAlSiN/WS2 multilayer deposited by multi-plasma immersion ion implantation and deposition and magnetron sputtering
来源期刊：中国有色金属学报(英文版)2011年第z2期
论文作者：XIE Zhi-wen WANG Lang-ping WANG Xiao-feng HUANG Lei LU Yang YAN Jiu-chun
文章页码：470 - 475
Key words：TiAlSiN; WS2; multilayer; friction coefficient; corrosion resistance
Abstract: To reduce the friction coefficient of the superhard TiAlSiN composite coating, TiAlSiN/WS2 multilayers were synthesized by multiple plasma immersion ion implantation and deposition as well as radio-frequency (RF) magnetron sputtering. X-ray diffraction (XRD), scanning electron microscopy (SEM), Raman spectrum, nano indentation, tribological and electrochemical tests were employed to characterize the microstructure, mechanical properties and corrosion behavior of the as-deposited multilayers. SEM results reveal that the TiAlSiN/WS2 multilayers have a good periodicity. Nano indentation results show that the nanohardness of TiAlSiN/WS2 multilayers is between that of the TiAlSiN and WS2 coatings. Tribological tests prove that the friction coefficient of the TiAlSiN/WS2 multilayers is lower and more stable than that of the TiAlSiN coating. In addition, the TiAlSiN/WS2 multilayers show excellent corrosion resistance and the corrosion current density decreases obviously at a relative small modulation period.
XIE Zhi-wen, WANG Lang-ping, WANG Xiao-feng, HUANG Lei, LU Yang, YAN Jiu-chun
(State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China)
Abstract:To reduce the friction coefficient of the superhard TiAlSiN composite coating, TiAlSiN/WS2 multilayers were synthesized by multiple plasma immersion ion implantation and deposition as well as radio-frequency (RF) magnetron sputtering. X-ray diffraction (XRD), scanning electron microscopy (SEM), Raman spectrum, nano indentation, tribological and electrochemical tests were employed to characterize the microstructure, mechanical properties and corrosion behavior of the as-deposited multilayers. SEM results reveal that the TiAlSiN/WS2 multilayers have a good periodicity. Nano indentation results show that the nanohardness of TiAlSiN/WS2 multilayers is between that of the TiAlSiN and WS2 coatings. Tribological tests prove that the friction coefficient of the TiAlSiN/WS2 multilayers is lower and more stable than that of the TiAlSiN coating. In addition, the TiAlSiN/WS2 multilayers show excellent corrosion resistance and the corrosion current density decreases obviously at a relative small modulation period.
Key words:TiAlSiN; WS2; multilayer; friction coefficient; corrosion resistance
