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Hot corrosion behaviour of single-phase platinum-modified aluminide coatings: Effect of Pt content and pre-oxidation
Yang, Y. F.; Jiang, C. Y.; Zhang, Z. Y.; Bao, Z. B.; Chen, M. H.; Zhu, S. L.; Wang, F. H.; Bao, ZB (reprint author), Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, Wencui Rd 62, Shenyang 110016, Liaoning, Peoples R China.; Chen, MH (reprint author), Northeastern Univ, Sch Mat Sci & Engn, Wenhua Rd 3, Shenyang 110819, Liaoning, Peoples R China.
2017-10-01
Source PublicationPERGAMON-ELSEVIER SCIENCE LTD
ISSN0010-938X
Volume127Pages:82-90
AbstractHot corrosion behaviour of nickel-based aluminide coatings with different thicknesses of initial Pt plating was evaluated in the Na2SO4/NaCl (75:25, wt./wt.) salt mixture at 900 degrees C. Compared to plain aluminide, the Pt modified coatings showed better hot corrosion resistance by hindering the outward diffusion of undesirable elements from the substrate alloy. Pre-oxidation was confirmed to be capable of preventing molten salt from accessing the alloy surface and reversibly dissolving the oxide scale. Oxide growth and dissolution, acting as two competitive processes, occurred simultaneously and had an important impact on the entire performance of the Pt-modified aluminide coatings in hot corrosion.; Hot corrosion behaviour of nickel-based aluminide coatings with different thicknesses of initial Pt plating was evaluated in the Na2SO4/NaCl (75:25, wt./wt.) salt mixture at 900 degrees C. Compared to plain aluminide, the Pt modified coatings showed better hot corrosion resistance by hindering the outward diffusion of undesirable elements from the substrate alloy. Pre-oxidation was confirmed to be capable of preventing molten salt from accessing the alloy surface and reversibly dissolving the oxide scale. Oxide growth and dissolution, acting as two competitive processes, occurred simultaneously and had an important impact on the entire performance of the Pt-modified aluminide coatings in hot corrosion.
description.department[yang, y. f. ; jiang, c. y. ; bao, z. b. ; zhu, s. l. ; wang, f. h.] chinese acad sci, inst met res, lab corros & protect, wencui rd 62, shenyang 110016, liaoning, peoples r china ; [yang, y. f.] univ sci & technol china, sch mat sci & engn, wenhua rd 72, shenyang 110016, liaoning, peoples r china ; [jiang, c. y. ; chen, m. h.] northeastern univ, sch mat sci & engn, wenhua rd 3, shenyang 110819, liaoning, peoples r china ; [zhang, z. y.] china natl south aviat ind co ltd, zhudong rd 881, zhuzhou 412002, peoples r china
KeywordPlatinum Metal Coatings Sem Epma Hot Corrosion
Subject AreaMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China [51301184, 51671202]; National Key Basic Research Programs of China (973 Program) [2012CB625100, 2010CB631206]; Defense Industrial Technology Development Program [JCKY2016404C001]; Liaoning BaiQianWan Talents Program
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79061
Collection中国科学院金属研究所
Corresponding AuthorBao, ZB (reprint author), Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, Wencui Rd 62, Shenyang 110016, Liaoning, Peoples R China.; Chen, MH (reprint author), Northeastern Univ, Sch Mat Sci & Engn, Wenhua Rd 3, Shenyang 110819, Liaoning, Peoples R China.
Recommended Citation
GB/T 7714
Yang, Y. F.,Jiang, C. Y.,Zhang, Z. Y.,et al. Hot corrosion behaviour of single-phase platinum-modified aluminide coatings: Effect of Pt content and pre-oxidation[J]. PERGAMON-ELSEVIER SCIENCE LTD,2017,127:82-90.
APA Yang, Y. F..,Jiang, C. Y..,Zhang, Z. Y..,Bao, Z. B..,Chen, M. H..,...&Chen, MH .(2017).Hot corrosion behaviour of single-phase platinum-modified aluminide coatings: Effect of Pt content and pre-oxidation.PERGAMON-ELSEVIER SCIENCE LTD,127,82-90.
MLA Yang, Y. F.,et al."Hot corrosion behaviour of single-phase platinum-modified aluminide coatings: Effect of Pt content and pre-oxidation".PERGAMON-ELSEVIER SCIENCE LTD 127(2017):82-90.
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