한국표면공학회지 (Journal of Surface Science and Engineering)

  • 제39권4호
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  • Pages.173-178
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  • 2006
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  • 1225-8024(pISSN)
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  • 2288-8403(eISSN)
한국표면공학회 (The Korean Institute of Surface Engineering)
권호 표지

팩 세멘테이션법에 의한 Incoloy 909 합금의 알루미나이징

Aluminizing of Incoroy 909 Alloy by Pack Cementation Method

  • Ahn, Jin-Sung (Sermatech Korea) ;
  • Kwon, Soon-Woo (School of Nano and Advanced Materials, Changwon National University) ;
  • Yoon, Jae-Hong (School of Nano and Advanced Materials, Changwon National University) ;
  • Park, Bong-Gyu (School of Nano and Advanced Materials, Changwon National University)
  • 발행 : 2006.08.30
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초록

Incoloy alloy 909 is an Fe-Ni-Co based superalloy that is attractive for gas turbine engine applications. The absence of chromium, however, makes the alloy more susceptible to oxidation in high temperature. To improve the oxidation resistance aluminizing was performed by high activity low temperature pack cementation process. Aluminizing condition was examined with different times and temperatures. Optimum aluminizing conditions were at the temperature of $552^{\circ}C$ for 20 hrs. In the optimized condition, the thickness of the aluminized layer was about $20{\mu}m$. Also, the aluminized layer made the alloy to increase the resistance to the corrosion.

키워드

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