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Effect of aluminium thermal spray coating on the corrosion resistance of a steel under oxidant atmosphere in a fluid catalytic cracking regenerator
Caminha, I; Zeng, C; Piza, M; Monteiro, M; Lopes, M; Rizzo, F
Corresponding AuthorCaminha, I()
2001
Source PublicationHIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 5, PTS 1 AND 2
ISSN0255-5476
Volume369-3Pages:655-661
AbstractThe effectiveness of aluminum thermal spray coating in the corrosion resistance of an ASTM A 387 G11 low alloy steel was evaluated under two conditions: an oxidant atmosphere in a fluid catalytic cracking regenerator of a petrochemical unit and a simulating atmosphere in the laboratory, in the temperatures of 650 degreesC and 700 degreesC. To provide a reference for the behavior of the uncoated substrate, samples of G11 steel without coating were also studied on both conditions, real and simulated. The characterization of the phases present in the oxidized layer was carried out by x-ray diffraction (XRD), optical microscopy (OM) and scanning electron microscopy (SEM) with X-ray energy dispersive analysis (EDS). The aluminum coated G11 steel, in both real and simulated conditions, presented a complex inner layer containing Fe-Al intermetallic phases and iron rich oxides and sulfides. Internal oxidation and sulfidation were also observed. In the G11 uncoated steel, a severe corrosion was observed in both, real and simulated conditions, with formation of several iron oxides (Fe2O3, Fe3O4 and FeO). Internal oxidation and sulfidation of chromium in the alloy were also observed.
Keywordaluminium coating oxidation thermal spray
Indexed BySCI
Language英语
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Ceramics ; Materials Science, Multidisciplinary ; Materials Science, Coatings & Films
WOS IDWOS:000172513200075
PublisherTRANS TECH PUBLICATIONS LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/112062
Collection中国科学院金属研究所
Corresponding AuthorCaminha, I
Affiliation1.Inst Nacl Tecnol, BR-20081310 Rio De Janeiro, RJ, Brazil
2.Acad Sinica, Inst Corros & Protect Met, State Key Lab Corros, Shenyang 110015, Peoples R China
3.SEMEC, DIPLOT, SUPEP, CENPES,PETROBRAS, BR-21949900 Rio De Janeiro, Brazil
4.Pontificia Univ Catolica Rio de Janeiro, Dept Ciencia Mat & Met, BR-22453900 Rio De Janeiro, Brazil
Recommended Citation
GB/T 7714
Caminha, I,Zeng, C,Piza, M,et al. Effect of aluminium thermal spray coating on the corrosion resistance of a steel under oxidant atmosphere in a fluid catalytic cracking regenerator[J]. HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 5, PTS 1 AND 2,2001,369-3:655-661.
APA Caminha, I,Zeng, C,Piza, M,Monteiro, M,Lopes, M,&Rizzo, F.(2001).Effect of aluminium thermal spray coating on the corrosion resistance of a steel under oxidant atmosphere in a fluid catalytic cracking regenerator.HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 5, PTS 1 AND 2,369-3,655-661.
MLA Caminha, I,et al."Effect of aluminium thermal spray coating on the corrosion resistance of a steel under oxidant atmosphere in a fluid catalytic cracking regenerator".HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 5, PTS 1 AND 2 369-3(2001):655-661.
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