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Effect of an enamel coating on hot corrosion behavior of the multi-arc plated NiCrAIY composite coating
Xie, DB; Zhu, SL; Wang, FH
Corresponding AuthorXie, DB(fhwang@imr.ac.cn)
2004
Source PublicationHIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS
ISSN0255-5476
Volume461-464Pages:297-304
AbstractA microcrystalline Ni-22Cr-13Al-0.5Y(wt%) coating was prepared on superalloy K38G by means of multi-arc plating. The samples with & without the enamel coatings were tested in air at 900degreesC and in melts of 75wt%NaCl+25wt%Na2SO4 at 850degreesC. Scanning electron microscopy (SEM),X-ray diffraction (XRD) and electron probe microanalysis (EPMA) were used to characterize the surface morphology, grain sizes and composition of the coatings and the corrosion products. The results indicated that the Ni-Cr-Al-Y coating consisted mainly of gamma-Ni solid solution and gamma-Ni3Al phases. The enamel coated specimens exhibited excellent hot corrosion resistance in the molten salt, in comparison with the multi-arc deposited Ni-Cr-Al-Y coating alone. During hot corrosion test, no breakaway corrosion occurred on the samples with the enamel coating up to an exposure time of 60 h and the composition of the enamel did not significantly change.
Keywordenamel coating NiCrAlY coating hot corrosion isothermal oxidation
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000223339700036
PublisherTRANS TECH PUBLICATIONS LTD
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/119169
Collection中国科学院金属研究所
Corresponding AuthorXie, DB
AffiliationChinese Acad Sci, Met Res Inst, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Xie, DB,Zhu, SL,Wang, FH. Effect of an enamel coating on hot corrosion behavior of the multi-arc plated NiCrAIY composite coating[J]. HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS,2004,461-464:297-304.
APA Xie, DB,Zhu, SL,&Wang, FH.(2004).Effect of an enamel coating on hot corrosion behavior of the multi-arc plated NiCrAIY composite coating.HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS,461-464,297-304.
MLA Xie, DB,et al."Effect of an enamel coating on hot corrosion behavior of the multi-arc plated NiCrAIY composite coating".HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS 461-464(2004):297-304.
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