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

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Laser Surface Treatment of Magnesium Alloy using ZrO2 for Corrosion Resistance

내식성 향상을 위한 마그네슘합금의 ZrO2 적용 레이저 표면 처리

  • Yoon, Sangwoo (Department of Mechanical Engineering, Graduate School, Seoul National University of Science and Technology) ;
  • Kang, Dongchan (Department of Mechanical Engineering, Graduate School, Seoul National University of Science and Technology) ;
  • Kim, Joohan (Department of Mechanical Engineering, Graduate School, Seoul National University of Science and Technology)
  • 윤상우 (서울과학기술대학교 일반대학원 기계공학과) ;
  • 강동찬 (서울과학기술대학교 일반대학원 기계공학과) ;
  • 김주한 (서울과학기술대학교 일반대학원 기계공학과)
  • Received : 2016.03.30
  • Accepted : 2016.06.16
  • Published : 2016.08.31
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Abstract

The laser surface treatment of magnesium alloy was studied. $ZrO_2$ was used as sintering ceramics, and its corrosion resistance was verified. Appropriate laser parameters were proposed for homogeneous solidification of the sintered layer. The chemical compositions of the sintered layer were analyzed with laser-induced breakdown spectroscopy. $Na_2SO_4$ was used for a corrosion test, and the resistance of the sintered sample was confirmed. The microstructures of the sintered parts were also examined. The solidified grains on the top sintered surface were observed; however, reasonable fusion was obtained at the interface between the baseline and the ceramics. Laser surface treatment using $ZrO_2$ on magnesium alloy showed an improvement in corrosion resistance.

Keywords

References

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