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Microstructural Characterisation of Austenitic Heat Resistant Sanicro 25 Steel after Steam Oxidation
Microstructural and morphological observations of the surface scale on a high Cr and Ni austenitic heat resistant steel oxidised in water vapour at 700 °C are reported. Analysis of microstructure was carried out by analytical techniques of transmission- and scanning electron microscopy. Investigatio...
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
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MDPI
2020
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7435803/ https://www.ncbi.nlm.nih.gov/pubmed/32751588 http://dx.doi.org/10.3390/ma13153382 |
| Sumario: | Microstructural and morphological observations of the surface scale on a high Cr and Ni austenitic heat resistant steel oxidised in water vapour at 700 °C are reported. Analysis of microstructure was carried out by analytical techniques of transmission- and scanning electron microscopy. Investigation of M(23)C(6) nucleated at the interface between matrix and the Z-phase precipitates after exposing to high temperature showed semicoherency between M(23)C(6) and the matrix and no coherency with the Z-phase. Plates developed on the oxide scale surface consist of Cr(2)O(3) crystals separated by amorphous SiO(2). |
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