Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Laser-Induced Plasma Spectroscopy Measurement on Surface Roughness in Surface Treatment of Titanium Alloys

티타늄 합금의 표면 처리에 있어 표면 거칠기에 대한 레이저 유도 플라즈마 분광분석법 측정 적용 연구

  • Kim, Ji-Hun (Department of Mechanical Engineering, Seoul National University of Science and Technology) ;
  • Kim, Joohan (Department of Mechanical Engineering, Seoul National University of Science and Technology)
  • 김지훈 (서울과학기술대학교 기계공학과) ;
  • 김주한 (서울과학기술대학교 기계공학과)
  • Received : 2019.11.21
  • Accepted : 2019.12.21
  • Published : 2020.02.29
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Abstract

In this study, the surface changes of titanium alloy using laser surface treatment and the surface analysis using laser-induced plasma spectroscopy were carried out. The laser surface treatment induced changes in surface roughness and the diffusion of atmospheric elements. Excessive melting or less melting caused roughness changes, but when moderate levels of energy were applied, a smoother surface could be obtained than the initial surface. In the process, the diffusion of atmospheric elements took place. To analyze the diffusion of atmospheric elements with respect to surface morphology, the surfaces were re-shaped with grinding. In this experimental conditions, the effect of plasma formation by surface roughness was identified. Compensated plasma signals for the material properties were obtained and analysed by removing the background plasma signal.

Keywords

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