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  Susceptibility of X17CrNi16-2 martensitic stainless steel to hydrogen embrittlement after conventional and deep cryogenic heat treatment

Leban, M. B., Zajec, B., Podgornik, B., Donik, Č., Jovičević-Klug, P., Hren, M., & Legat, A. (2024). Susceptibility of X17CrNi16-2 martensitic stainless steel to hydrogen embrittlement after conventional and deep cryogenic heat treatment. Engineering Failure Analysis,. doi:10.1016/j.engfailanal.2024.108403.

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アイテムのパーマリンク: https://hdl.handle.net/21.11116/0000-000F-3F37-E 版のパーマリンク: https://hdl.handle.net/21.11116/0000-000F-3F38-D
資料種別: 学術論文

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1-s2.0-S1350630724004497-main.pdf (プレプリント), 5MB
ファイルのパーマリンク:
https://hdl.handle.net/21.11116/0000-000F-3F39-C
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1-s2.0-S1350630724004497-main.pdf
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著作権日付:
2024
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 作成者:
Leban, Mirjam Bajt1, 著者
Zajec, Bojan1, 著者
Podgornik, Bojan2, 著者           
Donik, Črtomir2, 著者
Jovičević-Klug, Patricia3, 著者           
Hren, Miha1, 著者
Legat, Andraž1, 著者
所属:
1Slovenian National Building and Civil Engineering Institute, Dimičeva 12, 1000 Ljubljana, Slovenia, ou_persistent22              
2Institute of Metals and Technology, Lepi pot 11, 1000 Ljubljana, Slovenia, ou_persistent22              
3Corrosion, Interface Chemistry and Surface Engineering, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_2074315              

内容説明

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キーワード: Martensitic stainless steel, Deep cryogenic treatment, Hydrogen embrittlement, Slow strain rate tensile test
 要旨: A low carbon/ high chromium martensitic stainless steel, X17CrNi16-2, was heat treated using two different hardening and tempering regimes (1050 °C/480 °C or 980 °C/600 °C) — promoting either a high strength or high toughness state, respectively − and further combined with deep cryogenic treatment (DCT) at −196 °C for 24 h. Over recent years DCT has been recognized as a promising technique to improve the properties of steel, predominantly with respect to its tensile strength, toughness and wear resistance. The influence of DCT on the hydrogen embrittlement resistance of martensitic stainless steel has not yet, however, been reported. A slow strain rate tensile test (SSRT) with simultaneous cathodic hydrogen charging was selected as the method to assess potential susceptibility to hydrogen embrittlement (HE). Relatively low-intensity hydrogen charging, utilizing a constant current density of 0.1 mA/cm2, in a non-corrosive, slightly alkaline buffer solution, led to a clear reduction in the ultimate tensile stress. This reduction, and therefore the HE susceptibility, was more pronounced in the steel with a higher strength (i.e. that subject to the 1050 °C/ 480 °C heat treatment condition). Furthermore, DCT did not appear to have any impact on the steel’s mechanical properties in the presence of hydrogen. Fractographic analysis showed clear evidence of HE in the hydrogen-charged specimens. This paper presents results of the SSRT tests and further fractography results, and discusses the impact of conventional and deep cryogenic treatment on HE susceptibility.

資料詳細

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言語: eng - English
 日付: 2024-05-042024
 出版の状態: 出版
 ページ: -
 出版情報: -
 目次: -
 査読: -
 識別子(DOI, ISBNなど): DOI: 10.1016/j.engfailanal.2024.108403
 学位: -

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出版物 1

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出版物名: Engineering Failure Analysis
種別: 学術雑誌
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出版社, 出版地: -
ページ: - 巻号: - 通巻号: 108403 開始・終了ページ: - 識別子(ISBN, ISSN, DOIなど): ISBN: 1350-6307