Evaluation of hydrogen-induced cracking in high-strength steel welded joints by acoustic emission technique

Hydrogen-induced cracking behavior in high-strength steel mainly composed of martensite was analyzed by acoustic emission (AE) technique and finite element method (FEM) in slow strain-rate tensile (SSRT) tests and welding tests. The crack initiation was detected by the AE signals, and the time evolu...

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Main Authors:	Takayuki Shiraiwa, Miki Kawate, Fabien Briffod, Tadashi Kasuya, Manabu Enoki
Format:	Article
Language:	English
Published:	Elsevier 2020-05-01
Series:	Materials & Design
Online Access:	http://www.sciencedirect.com/science/article/pii/S0264127520301064

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spelling	doaj-8efe5255a28740ce979170f7d952bf0e2020-11-25T03:54:37ZengElsevierMaterials & Design0264-12752020-05-01190Evaluation of hydrogen-induced cracking in high-strength steel welded joints by acoustic emission techniqueTakayuki Shiraiwa0Miki Kawate1Fabien Briffod2Tadashi Kasuya3Manabu Enoki4Corresponding author.; Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, JapanDepartment of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, JapanDepartment of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, JapanDepartment of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, JapanDepartment of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, JapanHydrogen-induced cracking behavior in high-strength steel mainly composed of martensite was analyzed by acoustic emission (AE) technique and finite element method (FEM) in slow strain-rate tensile (SSRT) tests and welding tests. The crack initiation was detected by the AE signals, and the time evolution of stress concentration and hydrogen diffusion were calculated by FEM. The effect of hardness and plastic strain on the hydrogen diffusion coefficient was explicitly introduced into the governing equation in FEM. The criterion and indicator parameter for the crack initiation were derived as a function of maximum principal stress and locally accumulated hydrogen concentration. The results showed that the cracking criterion derived by AE and FEM is useful for predicting the cold cracking behavior and determining the critical preheat temperature to prevent hydrogen-induced cracking. Keywords: Hydrogen embrittlement, high-strength steels, Welded joints, Acoustic emission, Finite element analysishttp://www.sciencedirect.com/science/article/pii/S0264127520301064
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Takayuki Shiraiwa Miki Kawate Fabien Briffod Tadashi Kasuya Manabu Enoki
spellingShingle	Takayuki Shiraiwa Miki Kawate Fabien Briffod Tadashi Kasuya Manabu Enoki Evaluation of hydrogen-induced cracking in high-strength steel welded joints by acoustic emission technique Materials & Design
author_facet	Takayuki Shiraiwa Miki Kawate Fabien Briffod Tadashi Kasuya Manabu Enoki
author_sort	Takayuki Shiraiwa
title	Evaluation of hydrogen-induced cracking in high-strength steel welded joints by acoustic emission technique
title_short	Evaluation of hydrogen-induced cracking in high-strength steel welded joints by acoustic emission technique
title_full	Evaluation of hydrogen-induced cracking in high-strength steel welded joints by acoustic emission technique
title_fullStr	Evaluation of hydrogen-induced cracking in high-strength steel welded joints by acoustic emission technique
title_full_unstemmed	Evaluation of hydrogen-induced cracking in high-strength steel welded joints by acoustic emission technique
title_sort	evaluation of hydrogen-induced cracking in high-strength steel welded joints by acoustic emission technique
publisher	Elsevier
series	Materials & Design
issn	0264-1275
publishDate	2020-05-01
description	Hydrogen-induced cracking behavior in high-strength steel mainly composed of martensite was analyzed by acoustic emission (AE) technique and finite element method (FEM) in slow strain-rate tensile (SSRT) tests and welding tests. The crack initiation was detected by the AE signals, and the time evolution of stress concentration and hydrogen diffusion were calculated by FEM. The effect of hardness and plastic strain on the hydrogen diffusion coefficient was explicitly introduced into the governing equation in FEM. The criterion and indicator parameter for the crack initiation were derived as a function of maximum principal stress and locally accumulated hydrogen concentration. The results showed that the cracking criterion derived by AE and FEM is useful for predicting the cold cracking behavior and determining the critical preheat temperature to prevent hydrogen-induced cracking. Keywords: Hydrogen embrittlement, high-strength steels, Welded joints, Acoustic emission, Finite element analysis
url	http://www.sciencedirect.com/science/article/pii/S0264127520301064
work_keys_str_mv	AT takayukishiraiwa evaluationofhydrogeninducedcrackinginhighstrengthsteelweldedjointsbyacousticemissiontechnique AT mikikawate evaluationofhydrogeninducedcrackinginhighstrengthsteelweldedjointsbyacousticemissiontechnique AT fabienbriffod evaluationofhydrogeninducedcrackinginhighstrengthsteelweldedjointsbyacousticemissiontechnique AT tadashikasuya evaluationofhydrogeninducedcrackinginhighstrengthsteelweldedjointsbyacousticemissiontechnique AT manabuenoki evaluationofhydrogeninducedcrackinginhighstrengthsteelweldedjointsbyacousticemissiontechnique
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Evaluation of hydrogen-induced cracking in high-strength steel welded joints by acoustic emission technique

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