Carburization and Stress Profiles Characterized by High-Energy X-ray Diffraction in 316L Austenitic Stainless Steel After Exposure at 500 °C and 600 °C in Carburizing Liquid Sodium

Mohamed Fares Slim; Guillaume Geandier; Marie Romedenne; Fabien Rouillard; Benoit Malard

doi:10.1007/s11085-021-10039-6

Carburization and Stress Profiles Characterized by High-Energy X-ray Diffraction in 316L Austenitic Stainless Steel After Exposure at 500 °C and 600 °C in Carburizing Liquid Sodium

Mohamed Fares Slim, Guillaume Geandier, Marie Romedenne, Fabien Rouillard, Benoit Malard

Corrosion Science & Technology

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

316L austenitic stainless steel was carburized in sodium containing a high-carbon activity at two different temperatures, 500 °C and 600 °C for 1000 h. The carbon profile, carbide mass fraction and residual stress tensor profile were determined using electron probe microanalysis and high-energy X-ray diffraction. The carbon profile and carbides mass fractions were also predicted using a thermodynamic and kinetic modeling tool (DICTRA). At 600 °C, the experimental results and predictions suggested that the carbon absorbed by the sample was mainly trapped to form M₂₃C₆ and M₇C₃ carbides. The residual stress profile in austenite was strongly dependent on the M₂₃C₆ precipitation and the induced modification of the substrate chemical composition. At 500 °C, results and predictions suggested that the carbon was mainly dissolved in austenite. The residual stress profile was governed by the formation of expanded austenite at the sample surface.

Original language	English
Pages (from-to)	185-199
Number of pages	15
Journal	Oxidation of Metals
Volume	96
Issue number	3-4
DOIs	https://doi.org/10.1007/s11085-021-10039-6
State	Published - Oct 2021

Funding

The authors gratefully acknowledge the Deutsches Elektronen-Synchrotron (DESY-Petra III, Hamburg, Germany) for provision of beamtime at the PETRA P07-EH2 beamline. This work was supported by the French Alternative Energies and Atomic Energy Commission and the French State through the program “Investment in the future” operated by the National Research Agency (ANR) and referenced by ANR-11-LABX-0008-01 [].

Funders	Funder number
ANR-11-LABX-0008-01
Deutsches Elektronen-Synchrotron
Agence Nationale de la Recherche
Commissariat à l'Énergie Atomique et aux Énergies Alternatives

Keywords

Austenitic stainless steel
Carburization
High-energy X-ray diffraction
Residual stress tensor

Access to Document

10.1007/s11085-021-10039-6

Cite this

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title = "Carburization and Stress Profiles Characterized by High-Energy X-ray Diffraction in 316L Austenitic Stainless Steel After Exposure at 500 °C and 600 °C in Carburizing Liquid Sodium",

abstract = "316L austenitic stainless steel was carburized in sodium containing a high-carbon activity at two different temperatures, 500 °C and 600 °C for 1000 h. The carbon profile, carbide mass fraction and residual stress tensor profile were determined using electron probe microanalysis and high-energy X-ray diffraction. The carbon profile and carbides mass fractions were also predicted using a thermodynamic and kinetic modeling tool (DICTRA). At 600 °C, the experimental results and predictions suggested that the carbon absorbed by the sample was mainly trapped to form M23C6 and M7C3 carbides. The residual stress profile in austenite was strongly dependent on the M23C6 precipitation and the induced modification of the substrate chemical composition. At 500 °C, results and predictions suggested that the carbon was mainly dissolved in austenite. The residual stress profile was governed by the formation of expanded austenite at the sample surface.",

keywords = "Austenitic stainless steel, Carburization, High-energy X-ray diffraction, Residual stress tensor",

author = "Slim, {Mohamed Fares} and Guillaume Geandier and Marie Romedenne and Fabien Rouillard and Benoit Malard",

note = "Publisher Copyright: {\textcopyright} 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.",

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Carburization and Stress Profiles Characterized by High-Energy X-ray Diffraction in 316L Austenitic Stainless Steel After Exposure at 500 °C and 600 °C in Carburizing Liquid Sodium. / Slim, Mohamed Fares; Geandier, Guillaume; Romedenne, Marie et al.
In: Oxidation of Metals, Vol. 96, No. 3-4, 10.2021, p. 185-199.

Research output: Contribution to journal › Article › peer-review

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AU - Geandier, Guillaume

AU - Romedenne, Marie

AU - Rouillard, Fabien

AU - Malard, Benoit

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AB - 316L austenitic stainless steel was carburized in sodium containing a high-carbon activity at two different temperatures, 500 °C and 600 °C for 1000 h. The carbon profile, carbide mass fraction and residual stress tensor profile were determined using electron probe microanalysis and high-energy X-ray diffraction. The carbon profile and carbides mass fractions were also predicted using a thermodynamic and kinetic modeling tool (DICTRA). At 600 °C, the experimental results and predictions suggested that the carbon absorbed by the sample was mainly trapped to form M23C6 and M7C3 carbides. The residual stress profile in austenite was strongly dependent on the M23C6 precipitation and the induced modification of the substrate chemical composition. At 500 °C, results and predictions suggested that the carbon was mainly dissolved in austenite. The residual stress profile was governed by the formation of expanded austenite at the sample surface.

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