Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 21    Special 2    August 2011

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Mechanical performance and corrosion behavior of TiAlSiN/WS2 multilayer deposited by multi-plasma immersion ion implantation and deposition and magnetron sputtering
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

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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