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10.3390/ma17246114
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Article

Hydrogen Diffusion in Deformed Austenitic TRIP Steel—A Study of Mathematical Prediction and Experimental Validation

by
Christian Hempel
1,
Marcel Mandel
2,*,
Caroline Quitzke
3,
Marco Wendler
3,
Thilo Kreschel
3,
Olena Volkova
3 and
Lutz Krüger
2
1
Sunfire GmbH, Gasanstaltstr. 2, 01237 Dresden, Germany
2
Institute of Materials Engineering, Technische Universität Bergakademie Freiberg, Gustav-Zeuner Str. 5, 09599 Freiberg, Germany
3
Institute of Iron and Steel Technology, Technische Universität Bergakademie Freiberg, Leipziger Str. 34, 09599 Freiberg, Germany
*
Author to whom correspondence should be addressed.
Materials 2024, 17(24), 6114; https://doi.org/10.3390/ma17246114
Submission received: 29 October 2024 / Revised: 22 November 2024 / Accepted: 11 December 2024 / Published: 13 December 2024
(This article belongs to the Special Issue Corrosion Behavior and Mechanical Properties of Metallic Materials)
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Abstract

This study focuses on the effect of pre-deformation on hydrogen diffusion and hydrogen embrittlement of the high alloy austenitic TRIP steel X3CrMnNiMo17-8-4. Different cold-rolled steel sheets with thicknesses of ≤400 µm were electrochemically charged on both sides in 0.1 M sodium hydroxide with hydrogen for two weeks. Comparative measurements on uncharged and immersed samples prove that hydrogen causes embrittlement in this steel for all investigated states. The embrittlement increases with increasing pre-deformation and is accompanied by deformation-induced martensite formation. The corresponding fractured surfaces were examined using electron microscopy and compared to modelled hydrogen distributions with previously determined diffusion coefficients. For this purpose, various diffusion coefficients are determined using the Devanathan–Stachurski permeation test and hot extraction in order to describe the diffusion process. The hydrogen concentration profiles and the fractographic analyses show a good agreement, so this study provides a basis for estimating the embrittlement behaviour for later application.
Keywords: cold rolling; high alloy austenitic steel; hydrogen diffusion modelling; hydrogen embrittlement; TRIP cold rolling; high alloy austenitic steel; hydrogen diffusion modelling; hydrogen embrittlement; TRIP

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MDPI and ACS Style

Hempel, C.; Mandel, M.; Quitzke, C.; Wendler, M.; Kreschel, T.; Volkova, O.; Krüger, L. Hydrogen Diffusion in Deformed Austenitic TRIP Steel—A Study of Mathematical Prediction and Experimental Validation. Materials 2024, 17, 6114. https://doi.org/10.3390/ma17246114

AMA Style

Hempel C, Mandel M, Quitzke C, Wendler M, Kreschel T, Volkova O, Krüger L. Hydrogen Diffusion in Deformed Austenitic TRIP Steel—A Study of Mathematical Prediction and Experimental Validation. Materials. 2024; 17(24):6114. https://doi.org/10.3390/ma17246114

Chicago/Turabian Style

Hempel, Christian, Marcel Mandel, Caroline Quitzke, Marco Wendler, Thilo Kreschel, Olena Volkova, and Lutz Krüger. 2024. "Hydrogen Diffusion in Deformed Austenitic TRIP Steel—A Study of Mathematical Prediction and Experimental Validation" Materials 17, no. 24: 6114. https://doi.org/10.3390/ma17246114

APA Style

Hempel, C., Mandel, M., Quitzke, C., Wendler, M., Kreschel, T., Volkova, O., & Krüger, L. (2024). Hydrogen Diffusion in Deformed Austenitic TRIP Steel—A Study of Mathematical Prediction and Experimental Validation. Materials, 17(24), 6114. https://doi.org/10.3390/ma17246114

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