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The effect of grain refinement on the oxidation and phase transformation of alumina scale on Ni(2)Al(3 )coating
Khan, A.1,2; Ullah, Ihsan2; Ullah, A.2; Shah, S. S. A.1; Zhang, S. H.1; Song, G. S.1
Corresponding AuthorKhan, A.(azim@alum.imr.ac.cn) ; Song, G. S.(song_ahut@163.com)
2022-07-01
Source PublicationINTERMETALLICS
ISSN0966-9795
Volume146Pages:10
AbstractAn ultrafine-grained (UFG) and coarse-grained (CG) Ni2Al3 coating were prepared by aluminizing pure nickel substrate with and without nanocrystalline Ni film using an aluminization pack cementation process at 620 degrees C for 5 h. The oxidation kinetics and cyclic oxidation result show that the UFG-Ni2Al3 coating significantly enhances the oxidation-resistant with respect to the CG-Ni2Al3 coating in air at 900 degrees C. The SEM/EDS results confirmed that the microstructure of two 8-Ni2Al3 coatings is free of pores, cracks, and voids. The UFG-Ni2Al3 coating promotes the phase transformation with respect to the CG-Ni2Al3 coating after oxidation for various times were investigated by using photo-stimulated luminescence spectroscopy (PSLS) analysis. The experimental result also confirmed that the UFG-Ni2Al3 coating, on which an adherent alumina scale grew, can significantly control the formation of cavities at the scale/coating interface.
KeywordNi 2 Al 3 coating Grain refinement SEM TEM Raman spectroscopy Oxidation Alumina scale formation
Funding OrganizationResearch funds for interna-tional young Scientist the National Natural Science Foundation of China ; Key laboratory of Green Fabrication and Surface Technology of Advanced Metals Materials
DOI10.1016/j.intermet.2022.107571
Indexed BySCI
Language英语
Funding ProjectResearch funds for interna-tional young Scientist the National Natural Science Foundation of China[52150410429] ; Key laboratory of Green Fabrication and Surface Technology of Advanced Metals Materials[GFST2022ZR12]
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000796768900001
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/174054
Collection中国科学院金属研究所
Corresponding AuthorKhan, A.; Song, G. S.
Affiliation1.Anhui Univ Technol, Sch Mat Sci & Engn, Key Lab Green Fabricat & Surface Technol Adv Met M, Minist Educ, Maanshan 243000, Peoples R China
2.Chinese Acad Sci, Inst Met Res, 62 Wencui Rd, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Khan, A.,Ullah, Ihsan,Ullah, A.,et al. The effect of grain refinement on the oxidation and phase transformation of alumina scale on Ni(2)Al(3 )coating[J]. INTERMETALLICS,2022,146:10.
APA Khan, A.,Ullah, Ihsan,Ullah, A.,Shah, S. S. A.,Zhang, S. H.,&Song, G. S..(2022).The effect of grain refinement on the oxidation and phase transformation of alumina scale on Ni(2)Al(3 )coating.INTERMETALLICS,146,10.
MLA Khan, A.,et al."The effect of grain refinement on the oxidation and phase transformation of alumina scale on Ni(2)Al(3 )coating".INTERMETALLICS 146(2022):10.
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