The microchemical structure of the oxide scale grown on a polycrystalline Nimonic 80 A nickel-based superalloy as a function of the air high-temperature treatment (up to 950°C) has been studied by means of the combined use of glow discharge optical emission spectrometry (GDOES), scanning electron microscopy with energy-dispersive spectrometry (SEM + EDS) and x-ray diffraction (XRD). The results disclose the morphology, the microchemical structure and the in-depth elemental chemical composition of the oxide layers and their variation as a function of the temperature of the air thermal treatment. Furthermore, GDOES, SEM + EDS and XRD results show the different oxidation behaviours of both main alloying and minor reactive elements that induce the formation of a stratified oxide structure. Copyright © 2002 John Wiley & Sons, Ltd.
Combined use of GDOES and SEM+EDS for the microchemical study of oxide layers grown at high temperature on Nimonic 80 a nichel base superalloy / Ingo, G. M.; Angelini, EMMA PAOLA MARIA VIRGINIA; Calliari, I.; Dabal, M.; DE CARO, T.. - In: SURFACE AND INTERFACE ANALYSIS. - ISSN 0142-2421. - ELETTRONICO. - 34:1(2002), pp. 507-513. [10.1002/sia.1349]
Combined use of GDOES and SEM+EDS for the microchemical study of oxide layers grown at high temperature on Nimonic 80 a nichel base superalloy
ANGELINI, EMMA PAOLA MARIA VIRGINIA;
2002
Abstract
The microchemical structure of the oxide scale grown on a polycrystalline Nimonic 80 A nickel-based superalloy as a function of the air high-temperature treatment (up to 950°C) has been studied by means of the combined use of glow discharge optical emission spectrometry (GDOES), scanning electron microscopy with energy-dispersive spectrometry (SEM + EDS) and x-ray diffraction (XRD). The results disclose the morphology, the microchemical structure and the in-depth elemental chemical composition of the oxide layers and their variation as a function of the temperature of the air thermal treatment. Furthermore, GDOES, SEM + EDS and XRD results show the different oxidation behaviours of both main alloying and minor reactive elements that induce the formation of a stratified oxide structure. Copyright © 2002 John Wiley & Sons, Ltd.Pubblicazioni consigliate
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https://hdl.handle.net/11583/1403610
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