A Microstructural Investigation of Austenitic Heat Resistant Alloy after 500 h of Steam Oxidation

Alloy 709 was oxidized at 700 °C for 500 h in a steam environment. A microstructural analysis of the oxide scale is reported. Modern techniques of advanced electron microscopy were used to characterize the morphology of the oxide scale and recognize its single components. The material developed a co...

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Detalles Bibliográficos
Autores principales: Rutkowski, Bogdan, Baran, Krzysztof, Błoniarz, Remigiusz, Kozieł, Tomasz
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8002242/
https://www.ncbi.nlm.nih.gov/pubmed/33809776
http://dx.doi.org/10.3390/ma14061453
Descripción
Sumario:Alloy 709 was oxidized at 700 °C for 500 h in a steam environment. A microstructural analysis of the oxide scale is reported. Modern techniques of advanced electron microscopy were used to characterize the morphology of the oxide scale and recognize its single components. The material developed a complex, multilayered oxide scale. The outermost layer consisting of Fe(2)O(3). Fe(2)NiO(4) tI28 spinel was detected underneath. An internal oxidation zone is present in the innermost layer. High quality SEM-EDS maps give insight into a larger area of the oxide scale at a relatively low magnification.

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