Effect of Hydrogen Charging on the Mechanical Properties of 304 Stainless Steels

The effects of hydrogen charging on the mechanical properties of 304 stainless steels were investigated in conjunction with the detailed examinations of their fracture modes. The dependence of the absorbed impact energy and the surface hardness of the 304 stainless steels on the hydrogen charging ti...

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Published in한국동력기계공학회지 Vol. 19; no. 5; pp. 73 - 79
Main Authors Lee, Sang-Pill, Hwang, Seung-Kuk, Lee, Jin-Kyung, Son, In-Soo, Bae, Dong-Su
Format Journal Article
LanguageKorean
Published 2015
Subjects
304 stainless steel
Hardness Absorbed impact energy
Tensile property
Hydrogen charging time
Hydrogen embrittlement
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Summary:The effects of hydrogen charging on the mechanical properties of 304 stainless steels were investigated in conjunction with the detailed examinations of their fracture modes. The dependence of the absorbed impact energy and the surface hardness of the 304 stainless steels on the hydrogen charging time was characterized. The tensile properties of the 304 stainless steels by the variation of cross-head speed were also evaluated at the room temperature. The hydrogen charging was performed by an electrolysis method for all specimens of the 304 stainless steels. The mechanical properties of the 304 stainless steels exhibited the sensitivity of embrittlement due to a hydrogen charging. The correlation between mechanical properties and fracture surfaces was discussed.
Bibliography:KISTI1.1003/JNL.JAKO201533678767749
ISSN:1226-7813
2384-1354