TY - JOUR A1 - Radziszewska, Agnieszka A1 - Kranzmann, Axel A1 - Dörfel, Ilona A1 - Mosquera Feijoo, Maria A1 - Solecka, M. T1 - Microstructure and chemical composition of Fe-Cr alloy tempered in high temperature and atmosphere containing Ar-SO2 T2 - Archives of metallurgy and materials N2 - The paper presents the microstructure, chemical and phase composition of thin scale, obtained as a result of high temperature corrosion of X20Cr13 stainless steel. Samples were exposed to gas atmosphere of the following composition: 0.25 vol.% of SO2 and 99.75 vol.% of Ar at 600 °C for 5 h. As a consequence, thin compact scale was formed on steel surface. This scale consisted of three different zones. An amorphous zone was formed close to steel surface. Then, nanocrystalline Zone could be observed. Finally, larger grains were formed during the corrosion process. The analysis of the chemical composition revealed higher concentration of chromium near steel surface. In contrast, to chromium, the content of iron, increased near the scale surface. It was found out that the (Cr, Mn, Fe)5O12 phase appeared in the thin scale. PB - De Gruyter CY - Berlin KW - High-temperature corrosion KW - X20Cr13 steel PY - 2016 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/38351 AN - OPUS4-38351 SN - 1733-3490 SN - 2300-1909 VL - 61 IS - 3 SP - 1607 EP - 1612 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany