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The oxidation of two ternary Ni-Cu-10 at.% Al alloys in 1 atm of pure O-2 at 800-900 degrees C
Xiang, JH; Gesmundo, F; Niu, Y
Corresponding AuthorNiu, Y()
2004-08-01
Source PublicationCORROSION SCIENCE
ISSN0010-938X
Volume46Issue:8Pages:2025-2039
AbstractThe oxidation of the ternary alloys Ni-45Cu-10Al and Ni-30Cu-10Al has been studied at 800-900 degreesC under 1 atm O-2. The presence of 10 at.% Al reduces significantly the oxidation rate of the corresponding Cu-Ni alloys during the initial oxidation stages, even before the establishment of a complete Al2O3 layer. The weight of individual sample of the two ternary NiCu-10Al alloys at 800 degreesC increases more rapidly than at 900 degreesC during the initial oxidation stage. As oxidation proceeds, the weight gain at 800 degreesC slows down to a degree that the total weight gain after 24 h oxidation at 800 degreesC is less than that at 900 degreesC. Due to a faster formation of the Al2O3 layer, which suppresses earlier the further oxidation of Cu and Ni, the external region of the scales grown on Ni-45Cu-10Al contain much less Cu and Ni oxides than those grown on Ni-30Cu-10Al. The transition from the internal oxidation to the selective external oxidation of the most reactive component Al in Ni-Cu-Al alloys is favored by higher values of the Al content, of temperature and of the Cu/Ni ratio. (C) 2003 Elsevier Ltd. All rights reserved.
Keywordternary alloys nickel-copper base oxidation aluminium effect
DOI10.1016/j.corsci.2003.10.020
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000222843300014
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81438
Corresponding AuthorNiu, Y
Affiliation1.Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China
2.Univ Genoa, Dipartimento Ingn Chim, I-16129 Genoa, Italy
Recommended Citation
GB/T 7714
Xiang, JH,Gesmundo, F,Niu, Y. The oxidation of two ternary Ni-Cu-10 at.% Al alloys in 1 atm of pure O-2 at 800-900 degrees C[J]. CORROSION SCIENCE,2004,46(8):2025-2039.
APA Xiang, JH,Gesmundo, F,&Niu, Y.(2004).The oxidation of two ternary Ni-Cu-10 at.% Al alloys in 1 atm of pure O-2 at 800-900 degrees C.CORROSION SCIENCE,46(8),2025-2039.
MLA Xiang, JH,et al."The oxidation of two ternary Ni-Cu-10 at.% Al alloys in 1 atm of pure O-2 at 800-900 degrees C".CORROSION SCIENCE 46.8(2004):2025-2039.
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