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

被引：3
|
作者：
Que, Z. [1 ,2 ]
Seifert, H. P. [1 ]
Mazanova, V [1 ,3 ,4 ]
Spatig, P. [1 ]
机构：
[1] Paul Scherrer Inst, Lab Nucl Mat, CH-5232 Villigen, Switzerland
[2] VTT Tech Res Ctr Finland, Espoo 02044, Finland
[3] Czech Acad Sci, Inst Phys Mat, Brno 61662, Czech Republic
[4] Ohio State Univ, Ctr Electron Microscopy & Anal, Columbus, OH 43212 USA
来源：
MATERIALS LETTERS | 2022年 / 308卷
关键词：
Hydrogen embrittlement; Dynamic strain aging; Characterisation; Low-alloy steel; ENVIRONMENTAL DEGRADATION; TEMPERATURE; DEPENDENCE;
D O I：
10.1016/j.matlet.2021.131269
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Fracture mechanics tests in hydrogenated high-temperature water at 288 degrees 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 degrees C, which was evidenced by crack-tip microstructural characterisations.
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页数：5
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