IMR OpenIR
The corrosion of three commercial steels in reducing atmospheres containing HCl and H2S at 873 K
Pan, TJ; Al-Omary, M; Zeng, CL; Wu, WT; Niu, Y
Corresponding AuthorNiu, Y()
2005
Source PublicationHIGH TEMPERATURE MATERIALS AND PROCESSES
ISSN0334-6455
Volume24Issue:3Pages:193-203
AbstractThe behavior of three commercial steels with different Cr contents (NF616, 12CrMoV and SS304) at 873K in a gas mixture of (vol.%) 2 H-2, 0.5 HCl, 0.005 H2S, balance CO2, providing partial pressures of 3.7x10(-22) 22 atm O-2, 3.9x10(-9) atm S-2 and 2.4x 10(-14) atm Cl-2, has been studied to examine the effect of a minor addition of H2S to a reducing HCl-containing atmosphere on the corrosion of the same materials, studied previously under similar test conditions in the absence of H2S. The presence of sulfur accelerated the corrosion of the two steels with lower chromium contents, but had no effect on the corrosion of SS304. Both NF616 and 12CrMoV formed duplex external scales plus a zone of internal attack rich in oxygen and chromium with little sulfur (up to 2 at.%). Little or no chlorine could be detected in the internal attack zone and in the scale. In general, the scales formed on these two steels in the present atmosphere were quite porous with respect to those corroded in the H2S-free atmosphere. Conversely, the stainless steel SS304 corroded much more slowly, forming a protective chromia scale as in the H2S-free atmosphere. Thus, the beneficial effect of chromium on the corrosion resistance of the steels in this atmosphere is only effective at large Cr contents. The mechanism of "active oxidation", based on the formation, diffusion and re-oxidation of volatile chlorides of both iron and chromium, has been adopted to interpret the results obtained.
KeywordFe-Cr steels reducing atmosphere corrosion HCl and H2S effects
Indexed BySCI
Language英语
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000231793800008
PublisherFREUND PUBLISHING HOUSE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/82958
Corresponding AuthorNiu, Y
Affiliation1.Univ Sharjah, Dept Basic Sci, Sharjah, U Arab Emirates
2.Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Pan, TJ,Al-Omary, M,Zeng, CL,et al. The corrosion of three commercial steels in reducing atmospheres containing HCl and H2S at 873 K[J]. HIGH TEMPERATURE MATERIALS AND PROCESSES,2005,24(3):193-203.
APA Pan, TJ,Al-Omary, M,Zeng, CL,Wu, WT,&Niu, Y.(2005).The corrosion of three commercial steels in reducing atmospheres containing HCl and H2S at 873 K.HIGH TEMPERATURE MATERIALS AND PROCESSES,24(3),193-203.
MLA Pan, TJ,et al."The corrosion of three commercial steels in reducing atmospheres containing HCl and H2S at 873 K".HIGH TEMPERATURE MATERIALS AND PROCESSES 24.3(2005):193-203.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Pan, TJ]'s Articles
[Al-Omary, M]'s Articles
[Zeng, CL]'s Articles
Baidu academic
Similar articles in Baidu academic
[Pan, TJ]'s Articles
[Al-Omary, M]'s Articles
[Zeng, CL]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Pan, TJ]'s Articles
[Al-Omary, M]'s Articles
[Zeng, CL]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.