Barroux, Adrien
and Duguet, Thomas and Ducommun, Nadège and Nivet, Eric and Delgado, Julien and Laffont, Lydia and Blanc, Christine
Combined XPS / TEM study of the chemical composition and structure of the passive film formed on additive manufactured 17-4PH stainless steel.
(2021)
Surfaces and Interfaces, 22. 100874. ISSN 2468-0230
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(Document in English)
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Official URL: https://doi.org/10.1016/j.surfin.2020.100874
Abstract
he structure and chemical composition of the passive film formed on 17-4PH martensitic stainless steel (MSS) manufactured by powder bed laser beam melting (LBM) were investigated combining XPS and TEM analyses, by comparison to a conventional l 7-4PH. The structure of the passive film was found similar for both MSSs, with, on the matrix, a duplex layer composed of Fe and Cr oxy-hydroxide followed by an intermediate layer enriched in metallic compounds. A particular Nb oxide film formed on the NbC precipitates merging to the surface for both MSSs. Significant differences in thickness and Cr distribution were observed between both MSSs.
| Item Type: | Article |
|---|---|
| HAL Id: | hal-03111555 |
| Audience (journal): | International peer-reviewed journal |
| Uncontrolled Keywords: | |
| Institution: | Other partners > Centre Technique des Industries Mécaniques - CETIM (FRANCE) French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) |
| Laboratory name: | |
| Statistics: | download |
| Deposited On: | 15 Jan 2021 12:22 |
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