Corrosion behaviour of X52 pipeline steel in high H2S concentration solutions at temperatures ranging from 25 degrees C to 140 degrees C

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	Corrosion behaviour of X52 pipeline steel in high H2S concentration solutions at temperatures ranging from 25 degrees C to 140 degrees C
	M. Liu; J. Wang; W. Ke
	2013
发表期刊	Corrosion Engineering Science and Technology
ISSN	1478-422X
卷号	48 期号:5 页码:380-387
摘要	High temperature and high pressure immersion tests in an autoclave were employed to study the corrosion behaviour of X52 pipeline steel in aqueous solutions containing high concentrations of H2S. The corrosion products generated were characterised using scanning electron microscope, energy dispersive spectroscopy and X-ray diffraction. It was seen that at a constant H2S concentration of 22 g/l, the corrosion rate increased with increasing temperature up to 90 degrees C, thereafter decreased at 120 degrees C and slightly increased again at 140 degrees C while the corrosion rate increased with H2S concentration at a temperature of 90 degrees C. When the temperature and H2S concentration increased, the corrosion product converted from iron rich to sulphur rich products in the following sequence: mackinawite -> troilite -> pyrrhotite, where the microstructure and stability of the corrosion products had an important effect on the corrosion rate. The corrosion film was formed through the combination of the outward diffusion of Fe2+ ions and the inward diffusion of H2S and HS- species.
部门归属	[liu, m. ; wang, j. ; ke, w.] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. ; wang, j (reprint author), chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. ; jiqwang@imr.ac.cn
关键词	X52 Pipeline Steel H2s Corrosion High Temperature Corrosion Products Iron-sulfide Films Hydrogen-sulfide Solubility Autoclaves Morphology Pressures Diagrams Media Water
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/71374
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	M. Liu,J. Wang,W. Ke. Corrosion behaviour of X52 pipeline steel in high H2S concentration solutions at temperatures ranging from 25 degrees C to 140 degrees C[J]. Corrosion Engineering Science and Technology,2013,48(5):380-387.
APA	M. Liu,J. Wang,&W. Ke.(2013).Corrosion behaviour of X52 pipeline steel in high H2S concentration solutions at temperatures ranging from 25 degrees C to 140 degrees C.Corrosion Engineering Science and Technology,48(5),380-387.
MLA	M. Liu,et al."Corrosion behaviour of X52 pipeline steel in high H2S concentration solutions at temperatures ranging from 25 degrees C to 140 degrees C".Corrosion Engineering Science and Technology 48.5(2013):380-387.