Microstructure, Interface, and Properties of Multilayered CrN/Cr_2O_3 Coatings Prepared by Arc Ion Plating  

作　　者：Chang-Ming Shi Tie-Gang Wang Zhi-Liang Pei Jun Gong Chao Sun 

机构地区：[1]State Key Laboratory for Corrosion and Protection (SKLCP), Institute of Metal Research, Chinese Academy of Sciences

出　　处：《Journal of Materials Science & Technology》2014年第12期1193-1201,共9页材料科学技术（英文版）

基　　金：financial supports from the National Key Basic Research Program of China (973 Program, No. 2012CB625100);the National Natural Science Foundation of China (Nos. 51001106 and 51301181);the Doctoral Starting up Foundation of Liaoning Province Science and Technology Agency, China (No. 20131118)

摘　　要：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 Cr N/Cr2O3 coatings with different bilayer periods（L） 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（L）.There were two kinds of interfaces in the multilayered Cr N/Cr2O3coatings： the sharp ones and the blurry ones. With reducing the value of L, 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 L 〈 590 nm. The multilayered Cr N/Cr2O3 coating with the bilayer period L of 590 nm possessed the best comprehensive properties, namely the highest microhardness, the strongest adhesion, and the lowest wear rate.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 Cr N/Cr2O3 coatings with different bilayer periods（L） 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（L）.There were two kinds of interfaces in the multilayered Cr N/Cr2O3coatings： the sharp ones and the blurry ones. With reducing the value of L, 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 L 〈 590 nm. The multilayered Cr N/Cr2O3 coating with the bilayer period L of 590 nm possessed the best comprehensive properties, namely the highest microhardness, the strongest adhesion, and the lowest wear rate.

关 键 词：Cr2O3/CrN Multilayered coating Arc ion plating INTERFACE Mechanical properties WEAR 

分 类 号：TQ153[化学工程—电化学工业]