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Steam oxidation resistance of plasma sprayed chromium-containing coatings at 1200 degrees C
Yang, Zhao; Niu, Yaran; Xue, Jiaxiang; Liu, Tao; Chang, Chengkang; Zheng, Xuebin
2019
Source PublicationMATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
ISSN0947-5117
Volume70Issue:1Pages:37
SubtypeArticle
AbstractIn order to improve the high-temperature steam oxidation resistance of Zircaloy fuel claddings, chromium-containing coatings (Cr3C2-NiCr and NiCr) were deposited on a Zr-4 substrate by air plasma spray. The steam oxidation resistance of the two coatings was evaluated at 1200 degrees C under atmospheric pressure. The weight changes, phase compositions, and microstructures of the coatings before and after the oxidation test of 1 h were characterized. Results revealed that the Cr3C2-NiCr coating effectively protected Zr-4 from oxidation. A protective Cr2O3 scale with a thickness of about 7 mu m was formed on the surface of the Cr3C2-NiCr coating after 1 h duration and the formed oxide layer was about 100 times thinner than that formed on the uncoated sample. A none protective oxide scale was formed on the surface of the NiCr coated Zr-4 samples. Severe inter-diffusion between the NiCr coating and the Zr-4 substrate was observed. The oxidation mechanisms of the two types of chromium-containing coatings were analyzed and compared in detail.
Keywordair plasma spray Cr3C2-NiCr coating high-temperature steam oxidation NiCr coating Zircaloy claddings
DOI10.1002/maco.201810156
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27435
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Yang, Zhao,Niu, Yaran,Xue, Jiaxiang,et al. Steam oxidation resistance of plasma sprayed chromium-containing coatings at 1200 degrees C[J]. MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION,2019,70(1):37.
APA Yang, Zhao,Niu, Yaran,Xue, Jiaxiang,Liu, Tao,Chang, Chengkang,&Zheng, Xuebin.(2019).Steam oxidation resistance of plasma sprayed chromium-containing coatings at 1200 degrees C.MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION,70(1),37.
MLA Yang, Zhao,et al."Steam oxidation resistance of plasma sprayed chromium-containing coatings at 1200 degrees C".MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION 70.1(2019):37.
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