A Study on the friction and Wear Characteristics of C-N Coated SCM415 Steel

C-N코팅 SCM415강의 마찰$\cdot$마모 특성에 관한 연구

  • 유성기 (중국중경대학 기계전동국가중점실험실, 경상대학교 기계항공공학부 항공기부품연구소) ;
  • 노용 (중국 연변대학 이공학원) ;
  • 김태옥 (중국 연변대학 이공학원) ;
  • 염철만 (중국 연변대학 이공학원) ;
  • 조흥진 (중국 중경대학 기계전동국가중점실험실) ;
  • 조성민 (경상대학교 대학원 기계설계학과)
  • Published : 2005.03.01


This study deals with the friction and wear characteristics of C-N coated SCM415 steel. The PSII(plasma source ion implantation) apparatus was built and a SCM415 test piece with steel substrate was treated with carbon nitrogen by this apparatus. The composition and structure of the surface layer were analyzed and compared with that of PVD(physical vapor decomposition) coated TiN layer. It was found that both of friction coefficient of C-N coating and TiN coating decreased with increasing load, however, C-N coating showed relatively lower faction coefficient than that of TiN coating. The micro-vickers hardness of C-N film is 3200 Hv, which is $32\~43\%$ higher than that of TiN film. The critical load of C-N film is 52N, which is $25\%$ higher than that of TiN film. The hardness of C-N film fabricated by Plasma ion implantation is $61\~70\%$ higher than that of base material, and faction coefficient is $14\~50\%$ lower than that of base material. It is also interesting to note that the friction was changed from adhesive wear mode to light oxidizing wear mode.



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