期刊
CORROSION SCIENCE
卷 114, 期 -, 页码 17-27出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2016.10.029
关键词
Stainless steel; Raman spectroscopy; SEM; TEM; Internal oxidation; High temperature corrosion
Oxidation tests of AISI 304L in breakaway conditions (850 degrees C in O-2) were performed up to 312 h. The evolution of the oxidation affected zone microstructure was investigated using a combination of cornposional/elemental (TEM, Raman spectroscopy) and structural (EBSD) mapping techniques as well as thermodynamic calculations. The formation of a dense and continuous Cr2O3 healing layer at the border of the internal oxidation zone happens along the grain boundaries and is linked to their more efficient Cr supply. The propagation of the oxidation front is related to a local conversion of Cr2O3 in less protective FeCr2O4. 2016 Elsevier Ltd. All rights reserved.
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