| Title |
Effect of Al and Cr on Oxidation of Fe-Al and Fe-Cr Alloys |
| Authors |
김태완(Tae Wan Kim); 손인진(In Jin Shon); 고인용(In Yong Ko); 윤진국(Jin Kook Yoon); 도정만(Jung Mann Doh); 조승훈(Seung Hoon Jo) |
| DOI |
https://doi.org/10.3365/KJMM.2010.48.11.981 |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
metal; rolling; oxidation; scanning electron microscopy |
| 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. |