Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Convenient Aluminizing Process of Steel by Using Al-Ti Mixed Powder Slurry

Al-Ti 혼합 분말 슬러리를 이용한 강의 알루미나이징처리 방법

  • Lee, Young-Ki (Department of Semiconductor and Electronics Engineering, Uiduk University) ;
  • Kim, Jung-Yeul (Department of Semiconductor and Electronics Engineering, Uiduk University) ;
  • Lee, You-Kee (Department of Semiconductor and Electronics Engineering, Uiduk University)
  • 이영기 (위덕대학교 반도체전자공학과) ;
  • 김정열 (위덕대학교 반도체전자공학과) ;
  • 이유기 (위덕대학교 반도체전자공학과)
  • Published : 2009.04.27
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Abstract

In this study, we attempted to develop a convenient aluminizing process, using Al-Ti mixed slurry as an aluminum source, to control the Al content of the aluminized layer as a result of a one-step process and can be widely adopted for coating complex-shaped components. The aluminizing process was carried out by the heat treatment on disc and rod shaped S45C steel substrates with Al-Ti mixed slurries that were composed of various mixed ratios (wt%) of Al and Ti powders. The surface of the resultant aluminized layer was relatively smooth with no obvious cracks. The aluminized layers mainly contain an Fe-Al compound as the bulk phase. However, the Al concentration and the thickness of the aluminized layer gradually decrease as the Ti proportion among Al-Ti mixed slurries increases. It has also been shown that the Al-Ti compound layer, which formed on the substrate during heat treatment, easily separates from the substrate. In addition, the incorporation of Ti into the substrate surface during heat treatment was not observed.

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References

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