Study on crack healing of hydrogen attack in carbon steel by heat treatment

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	Study on crack healing of hydrogen attack in carbon steel by heat treatment
	C. F. Dong; X. G. Li; Z. S. Shen; W. Y. Chu
	2003
发表期刊	Corrosion
ISSN	0010-9312
卷号	59 期号:5 页码:401-406
摘要	The goal of the present experiments was to obtain crack heating of hydrogen attack (HA) in low-carbon steel by heat treatment. It was observed by scanning electron microscopy (SEM) that HA cracks experienced different heating effects. The results indicated that HA cracks less than or equal to10 mum in length can be heated completely by cyclic heat treatment between room temperature and 1, 000degreesC. Five cycles totaling 10 h were used. The studies performed showed that crack heating is controlled by diffusion and that the recovery kinetics depend on the plastic deforming energy, E., arising from the growth of HA bubbles or cracks. These findings led to the conclusion that the critical condition for healing of bubbles or cracks is E-S greater than or equal to 2 gamma/r (where gamma is the surface tension and r is the radius of bubbles or the half-length of cracks), provided the atoms of H, C, and Fe can diffuse rapidly.
部门归属	univ sci & technol beijing, sch mat sci & engn, beijing 100083, peoples r china. state key lab corros & protect, shenyang 110015, peoples r china.;dong, cf (reprint author), univ sci & technol beijing, sch mat sci & engn, beijing 100083, peoples r china
关键词	Crack Heating Heat Treatment Hydrogen Attack Low-carbon Steel Scanning Electron Microscopy
URL	查看原文
WOS记录号	WOS:000182766700002
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/35811
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	C. F. Dong,X. G. Li,Z. S. Shen,et al. Study on crack healing of hydrogen attack in carbon steel by heat treatment[J]. Corrosion,2003,59(5):401-406.
APA	C. F. Dong,X. G. Li,Z. S. Shen,&W. Y. Chu.(2003).Study on crack healing of hydrogen attack in carbon steel by heat treatment.Corrosion,59(5),401-406.
MLA	C. F. Dong,et al."Study on crack healing of hydrogen attack in carbon steel by heat treatment".Corrosion 59.5(2003):401-406.