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Title:Susceptibility of X17CrNi16-2 martensitic stainless steel to hydrogen embrittlement after conventional and deep cryogenic heat treatment
Authors:ID Bajt Leban, Mirjam (Author)
ID Zajec, Bojan (Author)
ID Podgornik, Bojan (Author)
ID Donik, Črtomir (Author)
ID Jovičević Klug, Patricia (Author)
ID Hren, Miha (Author)
ID Legat, Andraž (Author)
Files:URL URL - Source URL, visit https://www.sciencedirect.com/science/article/pii/S1350630724004497?via%3Dihub
 
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MD5: F3E1D53281F678D3B791A26F7BDC17F1
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo ZAG - Slovenian National Building and Civil Engineering Institute
Abstract: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.
Keywords:martensitic stainless steel, deep cryogenic treatment, hydrogen embrittlement, slow strain rate tensile test
Publication status:Published
Publication version:Version of Record
Publication date:04.05.2024
Publisher:Elsevier
Year of publishing:2024
Number of pages:str. 1-11
Numbering:Vol. 162, [article no.] 108403
PID:20.500.12556/DiRROS-18980 New window
UDC:54
ISSN on article:1873-1961
DOI:10.1016/j.engfailanal.2024.108403 New window
COBISS.SI-ID:194430723 New window
Copyright:© 2024 The Authors.
Note:Received 20 February 2024; Received in revised form 6 April 2024; Accepted 2 May 2024; Nasl. z nasl. zaslona; Opis vira z dne 6. 5. 2024;
Publication date in DiRROS:23.05.2024
Views:132
Downloads:142
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Record is a part of a journal

Title:Engineering failure analysis
Publisher:Elsevier
ISSN:1873-1961
COBISS.SI-ID:118778627 New window

Document is financed by a project

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P2-0050
Name:Kovinski materiali in tehnologije

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P2-0273
Name:Gradbeni objekti in materiali

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:J2-9211
Name:Izboljšanje lastnosti kovinskih materialov s postopkom podhlajevanja

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Language:Slovenian
Keywords:martenzitno nerjavno jeklo, globoko kriogensko podhlajevanje, vodikova krhkost, test s počasno hitrostjo rasti natezne deformacije


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