발간논문

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Vol.48, No.11, 981 ~ 989, 2010
Title
Effect of Al and Cr on Oxidation of Fe-Al and Fe-Cr Alloys
김태완 Tae Wan Kim , 손인진 In Jin Shon , 고인용 In Yong Ko , 윤진국 Jin Kook Yoon , 도정만 Jung Mann Doh , 조승훈 Seung Hoon Jo
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.
Key Words
metal, rolling, oxidation, scanning electron microscopy
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