PSI - Issue 65

ScienceDirect Structural Integrity Procedia 00 (2024) 000–000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2024) 000–000 Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 65 (2024) 11–16

The 17th International Conference on MECHANICS, RESOURCE AND DIAGNOSTICS OF MATERIALS AND STRUCTURES (MRDMS 2023) Hydrogen embrittlement evaluation of stainless steels by acoustic method S.A. Barannikova a,b,c, *, A.M. Nikonova a a Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences, Tomsk, 634055, Russia b Tomsk State University, Tomsk, 634050, Russia c Tomsk State Architecture and Building University, Tomsk, 634003, Russia The aim of this work is to study the degree of hydrogen embrittlement of martensitic stainless steel using the acoustic method. An estimate of the changes in mechanical properties and informative parameters of acoustic testing by loading of samples pre saturated with hydrogen using the electrolytic method was derived. It is established that the parameters of Rayleigh waves depend on the degree of hydrogen embrittlement both in the unloaded and loaded state, from the yield strength to failure. It was shown that the dependences of the propagation velocity of Rayleigh waves can be used in problems of early assessment of hydrogen embrittlement of a material. The results of the study of the effect of hydrogen concentration on the parameters of Rayleigh waves were as the basis for the construction of a complex acoustic method to determine the physical and mechanical characteristics of structural materials. The data obtained in this study make it possible to estimate the critical hydrogen concentration and the limit state of stainless steel under static loading using acoustic wave parameters. © 2024 The Authors, Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of MRDMS 2023 organizers Keywords: hydrogen embrittlement, srtength, plasticity, mechanical test, ultrasound velocity, strainless steel. The 17th International Conference on MECHANICS, RESOURCE AND DIAGNOSTICS OF MATERIALS AND STRUCTURES (MRDMS 2023) Hydrogen embrittlement evaluation of stainless steels by acoustic method S.A. Barannikova a,b,c, *, A.M. Nikonova a a Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences, Tomsk, 634055, Russia b Tomsk State University, Tomsk, 634050, Russia c Tomsk State Architecture and Building University, Tomsk, 634003, Russia Abstract The aim of this work is to study the degree of hydrogen embrittlement of martensitic stainless steel using the acoustic method. An estimate of the changes in mechanical properties and informative parameters of acoustic testing by loading of samples pre saturated with hydrogen using the electrolytic method was derived. It is established that the parameters of Rayleigh waves depend on the degree of hydrogen embrittlement both in the unloaded and loaded state, from the yield strength to failure. It was shown that the dependences of the propagation velocity of Rayleigh waves can be used in problems of early assessment of hydrogen embrittlement of a material. The results of the study of the effect of hydrogen concentration on the parameters of Rayleigh waves were as the basis for the construction of a complex acoustic method to determine the physical and mechanical characteristics of structural materials. The data obtained in this study make it possible to estimate the critical hydrogen concentration and the limit state of stainless steel under static loading using acoustic wave parameters. © 2024 The Authors, Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of MRDMS 2023 organizers Keywords: hydrogen embrittlement, srtength, plasticity, mechanical test, ultrasound velocity, strainless steel. © 2024 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of MRDMS 2023 organizers Abstract

1. Introduction 1. Introduction

Currently, the possible methods of physical acoustics, acoustic structuroscopy and defectoscopy in the study of materials have been studied quite thoroughly (Murav'ev, 1996; Dixon, 2002). The advantages of acoustic methods Currently, the possible methods of physical acoustics, acoustic structuroscopy and defectoscopy in the study of materials have been studied quite thoroughly (Murav'ev, 1996; Dixon, 2002). The advantages of acoustic methods

* Corresponding author. Tel.: +7-382-228-6923. E-mail address: bsa@ispms.ru * Corresponding author. Tel.: +7-382-228-6923. E-mail address: bsa@ispms.ru

2452-3216 © 2024 The Authors, Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of MRDMS 2023 organizers 2452-3216 © 2024 The Authors, Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of MRDMS 2023 organizers

2452-3216 © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of MRDMS 2023 organizers 10.1016/j.prostr.2024.11.003