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  Hydrogen desorption and cracking associated with martensitic transformation in Fe–Cr–Ni-Based austenitic steels with different carbon contents

Koyama, M., Ogawa, T., Yan, D., Matsumoto, Y., Tasan, C. C., Takai, K., et al. (2017). Hydrogen desorption and cracking associated with martensitic transformation in Fe–Cr–Ni-Based austenitic steels with different carbon contents. International Journal of Hydrogen Energy, 42(42), 26423-26435. doi:10.1016/j.ijhydene.2017.08.209.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-6436-2 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-6437-1
Genre: Journal Article

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 Creators:
Koyama, Motomichi1, Author              
Ogawa, Takuro2, Author              
Yan, Dingshun3, Author              
Matsumoto, Yuya4, Author              
Tasan, Cemal Cem5, Author              
Takai, Kenichi6, Author              
Tsuzaki, Kaneaki1, 7, Author              
Affiliations:
1Department of Mechanical Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan, ou_persistent22              
2Department of Mechanical Engineering, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, Japan, persistent22              
3Adaptive Structural Materials (Experiment), Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863382              
4Department of Engineering and Applied Science, Sophia University, Kioi-cho, Chiyoda-ku, Tokyo, Japan, persistent22              
5Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA, ou_persistent22              
6Department of Engineering and Applied Science, Sophia University, Tokyo, Japan, persistent22              
7HYDROGENIUS, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, Japan, persistent22              

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Free keywords: STAINLESS-STEELS; LOW-TEMPERATURES; INDUCED PLASTICITY; EMBRITTLEMENT; DEFORMATION; DAMAGE; MICROSTRUCTURE; RESISTANCE; FRACTUREChemistry; Electrochemistry; Energy & Fuels; Hydrogen embrittlement; Austenitic stainless steel; Martensitic transformation; Cryogenic thermal desorption spectroscopy; In situ characterization;
 Abstract: The hydrogen embrittlement behavior of Fe-19Cr-8Ni-0.05C and Fe-19Cr-8Ni-0.14C metastable austenitic steels was investigated using tensile tests under hydrogen-charging, cryogenic thermal desorption spectroscopy, and in situ deformation experiments. Coupled with post-mortem microstructure characterization, the cracking paths were clarified to be transgranular along {110}(alpha) and {100}(alpha) in the Fe-19Cr-8Ni-0.05C steel and (100)(alpha) in the Fe-19Cr-8Ni-0.14C steel. Intergranular cracking also occurred in the Fe-19Cr-8Ni-0.05C steel when alpha '-martensite thoroughly covered the grain boundaries. Occurrence of the transgranular and intergranular hydrogen-assisted cracking in the steels is assisted by (1) an increase in the hydrogen-affected zone associated with presence of thermally induced alpha '-martensite, and (2) an increase in the local mobility of hydrogen that occurs with the deformation-induced alpha '-martensitic transformation. Additionally, (3) the trans granular hydrogen-assisted cracking is assisted by the intersection of deformation bands driven by the maximum Schmid factor and the stress concentration at the crack tip. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

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Language(s): eng - English
 Dates: 2017-10-19
 Publication Status: Published in print
 Pages: 13
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Degree: -

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Title: International Journal of Hydrogen Energy
  Other : Int. J. Hydrogen Energy
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier
Pages: - Volume / Issue: 42 (42) Sequence Number: - Start / End Page: 26423 - 26435 Identifier: ISSN: 0360-3199
CoNE: /journals/resource/954925521672