J. Mater. Sci. Technol. ›› 2014, Vol. 30 ›› Issue (12): 1193-1201.DOI: 10.1016/j.jmst.2014.05.010

• Orginal Article • Previous Articles     Next Articles

Microstructure, Interface, and Properties of Multilayered CrN/Cr2O3 Coatings Prepared by Arc Ion Plating

Chang-Ming Shi, Tie-Gang Wang, Zhi-Liang Pei, Jun Gong, Chao Sun   

  1. State Key Laboratory for Corrosion and Protection (SKLCP), Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
  • Received:2013-12-10 Revised:2014-02-11 Online:2014-12-20 Published:2015-07-23
  • Contact: *Corresponding author. Prof.; Tel.: t86 24 83978081; Fax: t86 24 23841320; E-mail address: csun@imr.ac.cn (C. Sun) ** Corresponding author. Ph. D; E-mail addresses: tgwang@imr.ac.cn,sytgwang@gmail.com (T.-G. Wang).1005-0302/$ e see front matter Copyright 2014, The editorial office of Journal of Materials Science Technology. Published by Elsevier Limited. All rights reserved.
  • Supported by:
    *The authors are grateful for the financial supports from the National Key Basic Research Program of China (973 Program, No. 2012CB625100) and the National Natural Science Foundation of China (Nos. 51001106 and 51301181), and the Doctoral Starting up Foundation of Liaoning Province Science and Technology Agency, China (No. 20131118).

Abstract: There has been much interest in developing multilayered or nanolayered physical vapor deposition (PVD) coatings identified as a group of promising protective coatings for their excellent mechanical properties and corrosion resistance. In this study, the multilayered CrN/Cr2O3 coatings with different bilayer periods (Λ) were synthesized on the polished high speed steel substrates from a Cr target with the alternative atmosphere of pure nitrogen and pure oxygen by arc ion plating (AIP) technique. The results revealed that the microstructure, morphologies and properties of the multilayered coatings were strongly influenced by the bilayer period (Λ). There were two kinds of interfaces in the multilayered CrN/Cr2O3 coatings: the sharp ones and the blurry ones. With reducing the value of Λ, the macro-particles densities decreased gradually, whereas the coating microhardness, adhesive strength and wear resistance first increased, and then decreased slightly or remained stable as the bilayer period Λ < 590 nm. The multilayered CrN/Cr2O3 coating with the bilayer period Λ of 590 nm possessed the best comprehensive properties, namely the highest microhardness, the strongest adhesion, and the lowest wear rate.

Key words: Cr2O3/CrN, Multilayered coating, Arc ion plating, Interface, Mechanical properties, Wear