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Healing of hydrogen attacked crack in austenite stainless steel by heat treatment
Li, XG; Dong, CF; Chen, H; Chu, WY
Corresponding AuthorLi, XG()
2001-10-01
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume37Issue:10Pages:1093-1096
AbstractThe specimens of 304 austenite stainless steel with the hydrogen attacked bubbles or cracks were heat treated under 600 degreesC for 6 h. The SEM and TEM observations on the specimens before and after the heat treatment show that the bubbles or cracks can be healed completely by heat treatment. The healing of hydrogen attacked bubbles or cracks is closely related to heat diffusion of Fe and C atoms in austenite. The driving force of crack healing results from the plastic deforming energy E-s induced by the growth of hydrogen attacked bubbles or cracks. The critical condition of healing of bubbles or cracks is E-s greater than or equal to 2gamma/r (where gamma is the surface tension, r is the radius of bubbles or half length of crack). During healing of the hydrogen attacked bubbles or cracks, the recovery, polygonization and recrystallization of the sub-grain were also taken place.
Keywordstainless steel hydrogen attack crack healing
Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000174488400019
PublisherSCIENCE CHINA PRESS
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/112885
Collection中国科学院金属研究所
Corresponding AuthorLi, XG
Affiliation1.Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Li, XG,Dong, CF,Chen, H,et al. Healing of hydrogen attacked crack in austenite stainless steel by heat treatment[J]. ACTA METALLURGICA SINICA,2001,37(10):1093-1096.
APA Li, XG,Dong, CF,Chen, H,&Chu, WY.(2001).Healing of hydrogen attacked crack in austenite stainless steel by heat treatment.ACTA METALLURGICA SINICA,37(10),1093-1096.
MLA Li, XG,et al."Healing of hydrogen attacked crack in austenite stainless steel by heat treatment".ACTA METALLURGICA SINICA 37.10(2001):1093-1096.
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