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Three dimensional microstructure study of oxide scale formed on a high-speed steel by means of SEM, FIB and TEM
- Source :
- Faculty of Engineering - Papers (Archive)
- Publication Year :
- 2011
-
Abstract
- Characteristics of the oxide scale formed on a high-speed steel (HSS) material in the temperature range 550–650 °C were examined. The surface morphologies of oxidised sample indicate that the temperature has a significant influence on the oxidation behaviour of the HSS samples. Differential oxidation is expected to occur due to high-alloyed components in the material. The carbide-free matrix has a good oxidation resistance due to the dissolved chromium; while vanadium rich carbide (MC) regions were oxidised heavily because of high free energy at the carbide/matrix interface and low thermal stability of the MC carbides. FIB/TEM cross-section observation shows that the oxide scale formed on the surface has a duplex-layer structure with vanadium oxides covering the top of the scale.
Details
- Database :
- OAIster
- Journal :
- Faculty of Engineering - Papers (Archive)
- Publication Type :
- Electronic Resource
- Accession number :
- edsoai.on1066722728
- Document Type :
- Electronic Resource