Morphology of oxide scales formed on chromium-silicon alloys at high temperatures

[Display omitted] •Addition of Si to Cr significantly changed the oxide scale morphology.•Si additions led to SiO2 growth underneath the chromia scale.•The initially amorphous SiO2 crystallized to cristobalite at 1200°C.•Fine-grained chromia scale contained abnormally large single crystals.•Single c...

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Veröffentlicht in:	Corrosion science 2020-11, Vol.176, p.109023, Article 109023
Hauptverfasser:	Solimani, Ali, Nguyen, Thuan, Zhang, Jianqiang, Young, David J., Schütze, Michael, Galetz, Mathias C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Chromia Chromium Chromium base alloys Chromium oxides Cr-Si Crystal growth High temperature oxidation Morphology Scale (corrosion) Scale morphology Silicon dioxide Single crystal Single crystals Vapor phases
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