Morpho-chemical investigations and thermodynamic study of Nb-rich passive nodules grown on AISI 441 oxidized in wet atmosphere

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dc.contributor.authorParry, Valérie
dc.contributor.authorWongpromrat, Wichitra
dc.contributor.authorLatu-Romain, Laurence
dc.contributor.authorPascal, Céline
dc.contributor.authorChandra-ambhorn, Walairat
dc.contributor.authorChandra-ambhorn, Somrerk
dc.contributor.authorWouters, Yves
dc.contributor.authorGalerie, Alain
dc.date.accessioned2026-08-06T10:21:17Z
dc.date.available2026-08-06T10:21:17Z
dc.date.issued2018-08-15
dc.description.abstractAISI 441 sheets were oxidized from 4 to 24 h at 800 °C in wet atmosphere. Micrometric oxide nodules containing Ti, Nb, Cr and Mn were observed to form on the passive scale. The internal microstructure of these objects was investigated using STEM–EDX and FIB-SEM tomography. Experimental results reveal a complex microstructure linked with the presence of Si and Nb and their competition for interfacial oxidation. Eventually, the chemical compositions of the nodule and of the oxidation affected zone in the nodule vicinity are discussed in relation with thermodynamic calculations investigating the stability of the different oxides.
dc.identifier.citationCorrosion Science, 141, 255-263, 2018
dc.identifier.doi10.1016/j.corsci.2018.06.036
dc.identifier.issn0010938X
dc.identifier.other2-s2.0-85050154884
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/8962
dc.sourceCorrosion Science
dc.subjectHigh temperature corrosion
dc.subjectIntermetallics
dc.subjectSegregation
dc.subjectSEM
dc.subjectStainless steel
dc.subjectSTEM
dc.titleMorpho-chemical investigations and thermodynamic study of Nb-rich passive nodules grown on AISI 441 oxidized in wet atmosphere
dc.typeArticle

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