CEMS study of oxide layers formed on stainless steel (SUS304 and SUS316) |
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| Authors: | Kiyoshi Nomura Yusuke Ujihira |
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| Institution: | (1) Faculty of Engineering, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, 113 Tokyo, Japan |
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| Abstract: | Stainless steel (SUS304 and SUS316) was chemically treated and heated at various temperatures, and the oxide films formed on the surface were analyzed by conversion electron Mössbauer spectrometry (CEMS). Three magnetic components of iron species were detected in the top oxide layers of stainless steels heated below 600°C and the fine particles of iron oxides were initially produced in the inner oxide layers of the samples heated at temperatures higher than 700°C. Only paramagnetic iron species were detected in the oxide layers of the stainless steels prepared by chemical treatment. |
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