SEM, EDS, EPMA-WDS and EBSD characterization of carbides in HP type heat resistant alloys
- Universite de Nantes, Nantes Atlantique Universites, Polytech'Nantes, LGMPA, Rue Christian Pauc, BP 50609, F-44306 Nantes Cedex 3 (France)
- Air Liquide, Centre de Recherche Claude-Delorme, 1, chemin de la Porte des Loges, 78354 Jouy-en-Josas (France)
The microstructure of centrifugally cast heat resistant alloys of the HP-series (Fe-35Ni-25Cr-0.4C, wt.%) contains several minor phases, like carbides (M{sub 7}C{sub 3}, M{sub 23}C{sub 6} and MC). Several alloys are characterized by means of scanning electron microscopy in back-scattered electron imaging and energy dispersive spectroscopy, of electron probe micro-analysis by X-ray wavelength dispersive spectroscopy, and of electron back-scattered diffraction. On the one hand, scanning electron microscopy imaging in the back-scattered mode, associated with energy dispersive spectroscopy analysis and electron back-scattered diffraction, can lead to the identification of all phases, but with a lack of accuracy in certain cases. On the other hand, electron probe micro-analysis by X-ray wavelength dispersive spectroscopy alone can always provide a strict identification of all phases, with additional precise information on phase composition, including for light elements, which is important in the case of carbides.
- OSTI ID:
- 21137477
- Journal Information:
- Materials Characterization, Journal Name: Materials Characterization Journal Issue: 11 Vol. 59; ISSN 1044-5803; ISSN MACHEX
- Country of Publication:
- United States
- Language:
- English
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