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초경량성 박용기관을 위한 마그네슘 표면처리

A Study on the Surface Treatment of Magnesium for marine engine systems

  • 윤용섭 (한국해양대학교 선박전자기계공학부)
  • 투고 : 2011.01.26
  • 심사 : 2011.03.18
  • 발행 : 2011.03.31

초록

본 연구에서는 초경량성 마그네슘 재료를 엔진 블록, 실린더 헤드커버 등과 같은 박용기관에 적용하기 위한 환경 친화적 표면처리의 개발에 대하여 고찰하였다. 또한 이온플레이팅법에 의해 마그네슘 박막을 제작하고, 그 제작조건에 따라 변화하는 막의 결정배향성과 몰포로지가 경도특성에 미치는 영향을 해명하고자 하였다. 마그네슘 박막의 경도측정 결과, 아르곤 가스압의 증가에 따라 그 경도값이 상승하였 는데, 그 원인은 결정립계에 의한 강화와 성분 외 가스입자의 흡장효과에 의한 것으로 사료된다.

Magnesium thin films for marine engine parts such as the engine block and the cylinder head cover etc. were prepared on the magnesium alloy(AZ91D) substrate by Thermo-electron activated Ion-plating method. The influence of gas pressure and substrate bias voltages on the crystal orientation and morphology of the films was investigated with X-ray diffraction and field emission scanning electron microscope(FE-SEM), respectively. Moreover, the effect of crystal orientation and morphology of the magnesium films on the its hardness property was investigated as well. From the results, the hardness of the films was increased in Ar gas pressure due to the grain boundary strengthening and occlusion effects.

키워드

참고문헌

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피인용 문헌

  1. Strength Improvement of Porous Ceramics by the Surface Infiltration of Strengthening Materials vol.608, pp.1662-9795, 2014, https://doi.org/10.4028/www.scientific.net/KEM.608.26