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On the development and the oxidation of novel Ni-Cr and Ni-Al nanocoatings by composite electrodeposition
Peng, X; Zhou, Y; Zhang, Y; Wang, F
Corresponding AuthorPeng, X(xpeng@imr.ac.cn)
2004
Source PublicationHIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS
ISSN0255-5476
Volume461-464Pages:409-416
AbstractNovel Ni-based nanostructured coatings against high temperature oxidation were fabricated by composite eleoctrodeposition. The electrodeposited nanocoatings (ENCs) were prepared, separately from a nickel sulphate electrolyte bath with addition of Cr nanoparticles in an average size of 39 nm, or with Al nanoparticles in an average size of 75 nm. The Cr or Al nanoparticles were dispersed among the nanocrystalline Ni grains of ENCs. The ENC Ni-10.9Cr at 900degreesC and the ENC Ni-28.0Al at 1050degreesC exhibited a superior oxidation resistance as a result of the formation of continuous chromia or alumiuna scale, respectively. It is proposed that the dispersion of the Cr or Al nanoparticles among the nanocrystalline Ni grains greatly increased the surface density of the nucleation sites for Cr2O3 or Al2O3; simultaneously, the nanostructured coatings favored rapid healing of the narrowed Cr2O3 or Al2O3 nuclei during a very short transient period, which consequently led to the suppression of NiO growth.
Keywordnanocoating nanoparticle composite electrodeposition high temperature oxidation
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000223339700050
PublisherTRANS TECH PUBLICATIONS LTD
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/119591
Collection中国科学院金属研究所
Corresponding AuthorPeng, X
AffiliationChinese Acad Sci, Met Res Inst, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Peng, X,Zhou, Y,Zhang, Y,et al. On the development and the oxidation of novel Ni-Cr and Ni-Al nanocoatings by composite electrodeposition[J]. HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS,2004,461-464:409-416.
APA Peng, X,Zhou, Y,Zhang, Y,&Wang, F.(2004).On the development and the oxidation of novel Ni-Cr and Ni-Al nanocoatings by composite electrodeposition.HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS,461-464,409-416.
MLA Peng, X,et al."On the development and the oxidation of novel Ni-Cr and Ni-Al nanocoatings by composite electrodeposition".HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS 461-464(2004):409-416.
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