Hydrogen embrittlement on fracture resistance of low-alloy reactor pressure vessel steel with high dynamic strain aging at 288 °C

Z. Que; H. P. Seifert; V. Mazánová; P. Spätig

doi:10.1016/j.matlet.2021.131269

Hydrogen embrittlement on fracture resistance of low-alloy reactor pressure vessel steel with high dynamic strain aging at 288 °C

Z. Que^* (Corresponding Author), H. P. Seifert, V. Mazánová, P. Spätig

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

1 Citation (Scopus)

Abstract

Fracture mechanics tests in hydrogenated high-temperature water at 288 °C on low-alloy reactor pressure vessel steel with high dynamic strain aging (DSA) susceptibility revealed reduced fracture resistance, accelerated crack growth and increased quasi-cleavage appearance than test in high-temperature air. Hydrogen-induced softening by HESIV and HELP concur in synergy with DSA at 288 °C, which was evidenced by crack-tip microstructural characterisations.

Original language	English
Article number	131269
Journal	Materials Letters
Volume	308
Early online date	15 Nov 2021
DOIs	https://doi.org/10.1016/j.matlet.2021.131269
Publication status	Published - 1 Feb 2022
MoE publication type	A1 Journal article-refereed

Keywords

Characterisation
Dynamic strain aging
Hydrogen embrittlement
Low-alloy steel

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10.1016/j.matlet.2021.131269Licence: CC BY

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title = "Hydrogen embrittlement on fracture resistance of low-alloy reactor pressure vessel steel with high dynamic strain aging at 288 °C",

abstract = "Fracture mechanics tests in hydrogenated high-temperature water at 288 °C on low-alloy reactor pressure vessel steel with high dynamic strain aging (DSA) susceptibility revealed reduced fracture resistance, accelerated crack growth and increased quasi-cleavage appearance than test in high-temperature air. Hydrogen-induced softening by HESIV and HELP concur in synergy with DSA at 288 °C, which was evidenced by crack-tip microstructural characterisations.",

keywords = "Characterisation, Dynamic strain aging, Hydrogen embrittlement, Low-alloy steel",

author = "Z. Que and Seifert, {H. P.} and V. Maz{\'a}nov{\'a} and P. Sp{\"a}tig",

note = "Funding Information: The funding from Swiss Federal Nuclear Safety Inspectorate ( ENSI ) for the “LEAD” project is gratefully acknowledged. V. Maz{\'a}nov{\'a} acknowledges Ministry of Education, Youth and Sports of the Czech Republic for supporting the research stay at PSI under No. CZ.02.2.69/0.0/0.0/16_027/0008056. ",

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doi = "10.1016/j.matlet.2021.131269",

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T1 - Hydrogen embrittlement on fracture resistance of low-alloy reactor pressure vessel steel with high dynamic strain aging at 288 °C

AU - Que, Z.

AU - Seifert, H. P.

AU - Mazánová, V.

AU - Spätig, P.

N1 - Funding Information: The funding from Swiss Federal Nuclear Safety Inspectorate ( ENSI ) for the “LEAD” project is gratefully acknowledged. V. Mazánová acknowledges Ministry of Education, Youth and Sports of the Czech Republic for supporting the research stay at PSI under No. CZ.02.2.69/0.0/0.0/16_027/0008056.

PY - 2022/2/1

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N2 - Fracture mechanics tests in hydrogenated high-temperature water at 288 °C on low-alloy reactor pressure vessel steel with high dynamic strain aging (DSA) susceptibility revealed reduced fracture resistance, accelerated crack growth and increased quasi-cleavage appearance than test in high-temperature air. Hydrogen-induced softening by HESIV and HELP concur in synergy with DSA at 288 °C, which was evidenced by crack-tip microstructural characterisations.

AB - Fracture mechanics tests in hydrogenated high-temperature water at 288 °C on low-alloy reactor pressure vessel steel with high dynamic strain aging (DSA) susceptibility revealed reduced fracture resistance, accelerated crack growth and increased quasi-cleavage appearance than test in high-temperature air. Hydrogen-induced softening by HESIV and HELP concur in synergy with DSA at 288 °C, which was evidenced by crack-tip microstructural characterisations.

KW - Characterisation

KW - Dynamic strain aging

KW - Hydrogen embrittlement

KW - Low-alloy steel

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U2 - 10.1016/j.matlet.2021.131269

DO - 10.1016/j.matlet.2021.131269

M3 - Article

AN - SCOPUS:85119380914

SN - 0167-577X

VL - 308

JO - Materials Letters

JF - Materials Letters

M1 - 131269

ER -

Hydrogen embrittlement on fracture resistance of low-alloy reactor pressure vessel steel with high dynamic strain aging at 288 °C

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Keywords

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