Hydrogen Embrittlement of Ferritic-Perlitic and Martenzitic Pipe Steels

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F25%3AN0000040" target="_blank" >RIV/26316919:_____/25:N0000040 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/25:43933099

Výsledek na webu

<a href="https://journalmt.com/pdfs/mft/2025/05/04.pdf" target="_blank" >https://journalmt.com/pdfs/mft/2025/05/04.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.21062/mft.2025.064" target="_blank" >10.21062/mft.2025.064</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Hydrogen Embrittlement of Ferritic-Perlitic and Martenzitic Pipe Steels

Popis výsledku v původním jazyce

This study investigates the susceptibility of two pipeline steels, ferritic-pearlitic CSN 12022 and martensitic L80, to hydrogen embrittlement. Electrolytic hydrogen charging increased the absorbed hydrogen content approximately fivefold in both steels, with the martensitic grade showing higher uptake due to its dense dislocation network and carbide distribution. Tensile tests demonstrated that hydrogen had little influence on yield or ultimate tensile strength but caused a severe reduction in ductility. Elongation dropped from 39 % to 13 % in CSN 12022 and from 25 % to 11 % in L80. Fractographic analysis confirmed a transition from ductile dimple fracture to quasi-cleavage fracture in the hydrogen-charged condition. These findings confirm that microstructure strongly affects hydrogen embrittlement: ferritic-pearlitic steel undergoes a more dramatic relative loss in ductility, while martensitic steel retains higher strength but exhibits significant hydrogen-assisted cracking. The results highlight the importance of considering hydrogen effects in the design and application of steels for energy and gas transport systems.

Název v anglickém jazyce

Hydrogen Embrittlement of Ferritic-Perlitic and Martenzitic Pipe Steels

Popis výsledku anglicky

This study investigates the susceptibility of two pipeline steels, ferritic-pearlitic CSN 12022 and martensitic L80, to hydrogen embrittlement. Electrolytic hydrogen charging increased the absorbed hydrogen content approximately fivefold in both steels, with the martensitic grade showing higher uptake due to its dense dislocation network and carbide distribution. Tensile tests demonstrated that hydrogen had little influence on yield or ultimate tensile strength but caused a severe reduction in ductility. Elongation dropped from 39 % to 13 % in CSN 12022 and from 25 % to 11 % in L80. Fractographic analysis confirmed a transition from ductile dimple fracture to quasi-cleavage fracture in the hydrogen-charged condition. These findings confirm that microstructure strongly affects hydrogen embrittlement: ferritic-pearlitic steel undergoes a more dramatic relative loss in ductility, while martensitic steel retains higher strength but exhibits significant hydrogen-assisted cracking. The results highlight the importance of considering hydrogen effects in the design and application of steels for energy and gas transport systems.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20301 - Mechanical engineering

Projekt

<a href="/cs/project/EH23_020%2F0008512" target="_blank" >EH23_020/0008512: BIODEGRADABLE: Platforma pro moderní implantologii - výzkum individualizovaných biodegradabilních materiálů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

MANUFACTURING TECHNOLOGY

ISSN

1213-2489

e-ISSN

2787-9402

Svazek periodika

25

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

8

Strana od-do

618-625

Kód UT WoS článku

001634779100006

EID výsledku v databázi Scopus

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