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

Zaiqing 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

Zaiqing Que^*
, H. P. Seifert
, V. Mazánová
, P. Spätig

^*Corresponding author for this work

Paul Scherrer Institute (PSI)
Czech Academy of Sciences

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

3 Citations (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

Funding

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.

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

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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, Zaiqing

AU - Seifert, H. P.

AU - Mazánová, V.

AU - Spätig, P.

PY - 2022/2/1

Y1 - 2022/2/1

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

UR - https://www.scopus.com/pages/publications/85119380914

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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