The corrosion behavior of four commercial steels in reducing atmospheres containing HCl at 773-873 K

IMR OpenIR

	The corrosion behavior of four commercial steels in reducing atmospheres containing HCl at 773-873 K
	K. Zhang; Y. Niu; M. Al-Omary; W. T. Wu
	2004
发表期刊	Oxidation of Metals
ISSN	0030-770X
卷号	62 期号:5-6 页码:323-340
摘要	The corrosion of four Fe-Cr commercial steels with different tents in a simulated waste-gasification atmosphere containing 0.5 vol.% H-2, 0.5 vol.% HCl, balance CO2 has been investigated at 773 and 873 K. The same materials have also been tested in the same gas mixture free from HCl at both temperatures for comparison. The results show that the materials with low-chromium content (2.25 CrMoV and NF616) undergo accelerated corrosion in the presence of HCl, while the stainless steel SS304 suffers very little corrosion. On the contrary a steel containing 12 wt.% Cr (12 CrMoV) corrodes rather rapidly at 773 K but quite slowly at 873 K. The beneficial effect of chromium on the corrosion resistance of the steels increases with the chromium content at both temperatures. The steels tested show corrosion rates generally decreasing with time, having kinetics which are approximately parabolic at 773 K but intermediate between parabolic and linear at 873 K Only little or even no chlorine can be detected at the scale/metal interface at both temperatures for all materials corroded in HO-containing atmospheres. The corrosion mechanism can be explained by the so-called "active-oxidation, model.
部门归属	chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. univ sharjah, dept basic sci, sharjah, u arab emirates.;niu, y (reprint author), chinese acad sci, inst met res, state key lab corros & protect, wencui rd 62, shenyang 110016, peoples r china;yniu@imr.ac.cn
关键词	Cr Steels Hcl Reducing Atmosphere Corrosion High-temperature Corrosion Fe-cr Alloys Hydrogen-chloride Chromium-alloys Gas-mixtures Oxygen 800-degrees-c Oxidation Metals Fuels
URL	查看原文
WOS记录号	WOS:000226001700002
引用统计	被引频次：11[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/321006/35712
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	K. Zhang,Y. Niu,M. Al-Omary,et al. The corrosion behavior of four commercial steels in reducing atmospheres containing HCl at 773-873 K[J]. Oxidation of Metals,2004,62(5-6):323-340.
APA	K. Zhang,Y. Niu,M. Al-Omary,&W. T. Wu.(2004).The corrosion behavior of four commercial steels in reducing atmospheres containing HCl at 773-873 K.Oxidation of Metals,62(5-6),323-340.
MLA	K. Zhang,et al."The corrosion behavior of four commercial steels in reducing atmospheres containing HCl at 773-873 K".Oxidation of Metals 62.5-6(2004):323-340.