Korean Journal of Metals and Materials (대한금속재료학회지)

The Korean Institute of Metals and Materials (대한금속재료학회)
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Effect of Al and Cr on Oxidation of Fe-Al and Fe-Cr Alloys

Fe-Al과 Fe-Cr계 합금의 내 산화성에 미치는 Al과 Cr의 영향

  • Kim, Tae-Wan (Division of Advanced Materials Engineering, the Research Center of Advanced Materials Development, Chonbuk National University) ;
  • Jo, Seung-Hoon (Division of Advanced Materials Engineering, the Research Center of Advanced Materials Development, Chonbuk National University) ;
  • Ko, In-Yong (Division of Advanced Materials Engineering, the Research Center of Advanced Materials Development, Chonbuk National University) ;
  • Doh, Jung-Mann (Advanced Functional Materials Research Center, Korea Institute of Science and Technology) ;
  • Yoon, Jin-Kook (Advanced Functional Materials Research Center, Korea Institute of Science and Technology) ;
  • Shon, In-Jin (Division of Advanced Materials Engineering, the Research Center of Advanced Materials Development, Chonbuk National University)
  • 김태완 (전북대학교 신소재공학부 신소재개발연구센터) ;
  • 조승훈 (전북대학교 신소재공학부 신소재개발연구센터) ;
  • 고인용 (전북대학교 신소재공학부 신소재개발연구센터) ;
  • 도정만 (한국과학기술연구원) ;
  • 윤진국 (한국과학기술연구원) ;
  • 손인진 (전북대학교 신소재공학부 신소재개발연구센터)
  • Received : 2010.05.20
  • Published : 2010.11.25
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Abstract

The effects of Cr and Al contents in Fe-Al and Fe-Cr alloys on oxidation resistance, hardness, and the thermal expansion coefficient were investigated. Fe-Al and Fe-Cr alloys above 10wt.%Al and 20wt.%Cr contents have a high oxidation resistance. The hardness of the Fe-Al and Fe-Cr alloys increased with an increase in Al and Cr contents due to solid solution or formation of an intermetallic compound. The coefficients of thermal expansion of the Fe-Al alloys were higher than those of the Fe-Cr alloys because the coefficient of thermal expansion of Al was higher than that of Fe and Cr.

Keywords

Acknowledgement

Supported by : 지식경제부

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