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Initial corrosion behavior of carbon steel Q235 in the atmosphere with SO2
Wang Chuan; Wang Zhenyao; Ke Wei
Corresponding AuthorWang Zhenyao(zhywang@imr.ac.cn)
2008-06-01
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume44Issue:6Pages:729-734
AbstractThe initial corrosion behaviors of carbon steel Q235 in the atmosphere with different concentrations Of SO2 were investigated by SEM/EDAX and FTIR. The corrosion kinetics results showed the variation of thickness loss of Q235 is related to concentrations Of SO2. When the concentration Of SO2 was relatively low, the thickness loss increased slowly, and when the concentration Of SO2 was relatively high, the thickness loss decreased rapidly. The concentration Of SO2 has a little effect on sulfate in the products, but facilitated the formations of oxide or hydrate in the rust layer. In all conditions, the corrosion products included FeSO4 center dot 7H(2)O, Fe-2(SO4)(3)center dot 9H(2)O, gamma-FeOOH and amorphous delta-FeOOH, but the concentration Of SO2 was enhanced to 0.5% (volume fraction), alpha-FeOOH was detected in the corrosion products. In the atmosphere with 0.05%SO2, rust nests appeared in the rust layer and the elements inside and outside the nest were great different, and a probable mechanism was proposed.
Keywordsteel Q235 SO2 initial corrosion rust nest
Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000257410200017
PublisherSCIENCE CHINA PRESS
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/93219
Collection中国科学院金属研究所
Corresponding AuthorWang Zhenyao
AffiliationChinese Acad Sci, Inst Met Res, Environm Corros Ctr, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Wang Chuan,Wang Zhenyao,Ke Wei. Initial corrosion behavior of carbon steel Q235 in the atmosphere with SO2[J]. ACTA METALLURGICA SINICA,2008,44(6):729-734.
APA Wang Chuan,Wang Zhenyao,&Ke Wei.(2008).Initial corrosion behavior of carbon steel Q235 in the atmosphere with SO2.ACTA METALLURGICA SINICA,44(6),729-734.
MLA Wang Chuan,et al."Initial corrosion behavior of carbon steel Q235 in the atmosphere with SO2".ACTA METALLURGICA SINICA 44.6(2008):729-734.
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