Oxidation of a Fe-18Cr-8Ni austenitic stainless steel at 850 °C in O₂: Microstructure evolution during breakaway oxidation

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• 作者：Audrey Col ; Valé ; rie Parry ; Cé ; line Pascal ; ^{Celine.Pascal@simap.grenoble-inp.fr}
• 关键词：A. Stainless steel ; B. Raman spectroscopy ; B. SEM ; B. TEM ; C. Internal oxidation ; C. High temperature corrosion
• 刊名：Corrosion Science
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：114
• 期：Complete
• 页码：17-27
• 全文大小：5796 K
• 卷排序：114

文摘

Microstructure evolution during oxidation of 304L in breakaway conditions (850 °C, O2). Elemental and structural mapping techniques and thermodynamic calculations. (Fe–Ni alloy + Fe–Cr spinel oxide) mixture and Cr2O3 or FeCr2O4 layer. Cr2O3 healing layer at the oxidation affected zone border depending on steel GB location. Oxidation front propagation related to a local conversion of Cr2O3 in less protective FeCr2O4.