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팩 세멘테이션법에 의한 Incoloy 909 합금의 알루미나이징

Aluminizing of Incoloy 909 Alloy by Pack Cementation Method

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초록

Abstract

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 552oC for 20 hrs. In the optimized condition, the thickness of the aluminized layer was about 20 mm. Also, the aluminized layer made the alloy to increase the resistance to the corrosion

참고문헌 (4)

  1. "The Metallurgical Society of AIME", pp.591~
  2. "Mater. Sci. Eng.", A356 (2003)
  3. "edited by S. Reichman", pp.151~
  4. "European Network Surface Engineering of New Alloys for Super High Efficiency Power Generation" (2001)

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