International Journal of Precision Engineering and Manufacturing

  • 제7권4호
  • /
  • Pages.47-50
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  • 2006
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  • 2234-7593(pISSN)
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  • 2005-4602(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지

Efficiency of an SCM415 Alloy Surface Layer Implanted with Nitrogen Ions by Plasma Source Ion Implantation

  • Lyu, Sung-Ki (School of Mechanical & Aerospace Eng., ReCAPT, Gyeongsang National University) ;
  • He, Hui-Bo (Graduate School, Gyeongsang National University) ;
  • Lu, Long (Huaihai Institute of Technology) ;
  • Youn, Il-Joong (School of Mechanical & Aerospace Eng., Gyeongsang National University)
  • 발행 : 2006.10.01
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초록

SCM415 alloy was implanted with nitrogen ions using plasma source ion implantation (PSII), at a dose range of $1{\times}10^{17}\;to\;6{\times}10^{17}\;N^+cm^{-2}$ Auger electron spectrometry (AES) was used to investigate the depth profile of the implanted layer. Friction and wear tests were carried out on a block-on-ring wear tester. Scanning electron microscopy (SEM) was used to observe the micro-morphology of the worn surface. The results revealed that after being implanted with nitrogen ions, the frictional coefficient of the surface layer decreased, and the wear resistance increased with the nitrogen dose. The tribological mechanism was mainly adhesive, and the adhesive wear tended to become weaker oxidative wear with the increase in the nitrogen dose. The effects were mainly attributed to the formation of a hard nitride precipitate and a supersaturated solid solution of nitrogen in the surface layer.

키워드

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