Heat Treatment of Metals ›› 2022, Vol. 47 ›› Issue (4): 240-244.DOI: 10.13251/j.issn.0254-6051.2022.04.041

• SURFACE ENGINEERING • Previous Articles     Next Articles

Mechanical properties of CrCN coatings at different deposition temperatures

Liu Naiyu, Cao Lei, Zheng Shaomei   

  1. School of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao Shandong 266033, China
  • Received:2021-12-17 Revised:2022-01-13 Online:2022-04-25 Published:2022-05-19

Abstract: CrCN coatings were prepared on 304 stainless steel surface by magnetron sputtering technique, then the effect of deposition temperature on structure and mechanical properties of the CrCN coating was studied. The results show that the grain size and surface roughness are the largest for the coating obtained at 250 ℃. With further increase of the deposition temperature, the grain size is gradually refined, and the surface roughness is gradually decreased, but the hardness shows a trend of increasing and then decreasing. The coating obtained at the deposition temperature of 350 ℃ presents the highest hardness and the best resistance to elastic deformation and plastic deformation, showing the excellent mechanical properties of the coating.

Key words: magnetron sputtering, CrCN coating, deposition temperature, mechanical properties

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