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Hydrogen Embrittlement Characteristics of Tempered Martensitic Steels under Electrochemical and High-Pressure Hydrogen Environments
전기화학적 및 고압 수소 분위기하 템퍼드 마르텐사이트강의 수소취화 특성 비교

Sang-Gyu Kim, Jae-Yun Kim, Hyun-Joo Seo, Hwan-Gyo Jung, Jaeyoung Park, Un-Bong Baek, Byoungchul Hwang
김상규, 김재윤, 서현주, 정환교, 박재영, 백운봉, 황병철

Korean J. Met. Mater. 2023;61(11):807-814. Published online 2023 Oct 29
DOI: https://doi.org/10.3365/KJMM.2023.61.11.807

Abstract
The effect of hydrogen charging methods on the hydrogen embrittlement characteristics of tempered martensitic steels were discussed in terms of hydrogen diffusion behavior. Two tempered martensitic steels with different Si content were fabricated by quenching and tempering. The steel with high Si content had a lower cementite fraction because the..... More

Effect of Microstructure on Strain Aging and Hydrogen Embrittlement Behavior of Bake Hardening Steels
소부경화강의 변형 시효 및 수소취성 거동에 미치는 미세조직의 영향

Jae-Yun Kim, Seok-Woo Ko, Byoungchul Hwang
김재윤, 고석우, 황병철

Korean J. Met. Mater. 2022;60(11):811-818. Published online 2022 Oct 31
DOI: https://doi.org/10.3365/KJMM.2022.60.11.811

Abstract
The strain aging and hydrogen embrittlement behavior of two bake hardening (BH) steels with different microstructures were investigated in this study. The single-phase BH steel was composed of fully ferrite, while the dual-phase BH steel consisted of ferrite and 3 % martensite. The BH index and aging index (AI) of..... More

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