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The promoted formation of an alpha-Al2O3 scale on a nickel aluminide with surface Cr2O3 particles
Huang, Y; Peng, X; Peng, X (reprint author), Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, 62 Wencui Rd, Shenyang 110016, Peoples R China.
2016-11-01
Source PublicationCORROSION SCIENCE
ISSN0010-938X
Volume112Pages:226-232
AbstractA concept has been proposed that spreading particles of oxide (e.g., Cr2O3) with the same crystallographic structure as alpha-Al2O3 onto an alumina-forming aluminide can promote the growth of alpha-Al2O3 at high temperatures. This is in agreement with experimental observation that a Ni2Al3 experiences a theta-to-alpha. Al2O3 transformation while the Cr2O3-treated one only grows alpha-Al2O3 during oxidation in air at 1000 degrees C. The theta-alpha phase transformation bypassing by the surface Cr2O3 particles decreases the oxidation rate of the aluminide and prevents the phase-transformation-induced negative effects of the formation of microcracks in the alumina scale and cavities at the scale/metal interface. (C) 2016 Elsevier Ltd. All rights reserved.
description.department[huang, y. ; peng, x.] univ sci & technol china, coll mat sci & engn, hefei 230026, peoples r china ; [huang, y. ; peng, x.] chinese acad sci, inst met res, lab corros & protect, 62 wencui rd, shenyang 110016, peoples r china
KeywordMetal Coatings Raman Spectroscopy Sem Oxidation
Subject AreaMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China (NSFC) [51471178]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/76212
Collection中国科学院金属研究所
Corresponding AuthorPeng, X (reprint author), Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, 62 Wencui Rd, Shenyang 110016, Peoples R China.
Recommended Citation
GB/T 7714
Huang, Y,Peng, X,Peng, X . The promoted formation of an alpha-Al2O3 scale on a nickel aluminide with surface Cr2O3 particles[J]. CORROSION SCIENCE,2016,112:226-232.
APA Huang, Y,Peng, X,&Peng, X .(2016).The promoted formation of an alpha-Al2O3 scale on a nickel aluminide with surface Cr2O3 particles.CORROSION SCIENCE,112,226-232.
MLA Huang, Y,et al."The promoted formation of an alpha-Al2O3 scale on a nickel aluminide with surface Cr2O3 particles".CORROSION SCIENCE 112(2016):226-232.
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