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Hot corrosion of arc ion plating NiCrAlY and sputtered nanocrystalline coatings on a nickel-based single-crystal superalloy
Wang, Jinlong; Chen, Minghui; Cheng, Yuxian; Yang, Lanlan; Bao, Zebin; Liu, Li; Zhu, Shenglong; Wang, Fuhui; Chen, MH; Bao, ZB (reprint author), Northeastern Univ, Key Lab Anisotropy & Texture Mat, Minist Educ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China.
2017-07-15
Source PublicationCORROSION SCIENCE
ISSN0010-938X
Volume123Pages:27-39
AbstractHot corrosion in sulfate salt at 850 degrees C of three metallic coatings is investigated comparatively. The NiCrAlY coating loses its protectiveness after 200 h corrosion. Its oxide scale spans off partly and becomes porous as a consequence of basic fluxing. The nanocrystalline coating (SN) performs better than the NiCrAlY one, but its scale is porous as well. Oxidation and/or sulfidation of Ta account for the formation of pores. The yttrium modified nanocrystalline coating (SNY) provides the highest corrosion resistance. Yttrium completely inhibits oxidation and sulfidation of Ta. Its scale is intact and adherent, and exclusively composted of alumina.; Hot corrosion in sulfate salt at 850 degrees C of three metallic coatings is investigated comparatively. The NiCrAlY coating loses its protectiveness after 200 h corrosion. Its oxide scale spans off partly and becomes porous as a consequence of basic fluxing. The nanocrystalline coating (SN) performs better than the NiCrAlY one, but its scale is porous as well. Oxidation and/or sulfidation of Ta account for the formation of pores. The yttrium modified nanocrystalline coating (SNY) provides the highest corrosion resistance. Yttrium completely inhibits oxidation and sulfidation of Ta. Its scale is intact and adherent, and exclusively composted of alumina.
description.department[wang, jinlong ; chen, minghui ; wang, fuhui] northeastern univ, key lab anisotropy & texture mat, minist educ, sch mat sci & engn, shenyang 110819, peoples r china ; [yang, lanlan ; bao, zebin ; liu, li ; zhu, shenglong ; wang, fuhui] chinese acad sci, inst met res, lab corros & protect, shenyang 110016, peoples r china ; [cheng, yuxian] avic shenyang liming aeroengine grp corp ltd, shenyang 110043, peoples r china
KeywordSuperalloys Metal Coatings Hot Corrosion
Subject AreaMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China [51471177, 51671053]; Youth Innovation Promotion Association CAS [2016178]; Fundamental Research Funds for the Central Universities [N160205001]; National Basic Research Program of China [2014CB643303]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/78042
Collection中国科学院金属研究所
Corresponding AuthorChen, MH; Bao, ZB (reprint author), Northeastern Univ, Key Lab Anisotropy & Texture Mat, Minist Educ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China.
Recommended Citation
GB/T 7714
Wang, Jinlong,Chen, Minghui,Cheng, Yuxian,et al. Hot corrosion of arc ion plating NiCrAlY and sputtered nanocrystalline coatings on a nickel-based single-crystal superalloy[J]. CORROSION SCIENCE,2017,123:27-39.
APA Wang, Jinlong.,Chen, Minghui.,Cheng, Yuxian.,Yang, Lanlan.,Bao, Zebin.,...&Bao, ZB .(2017).Hot corrosion of arc ion plating NiCrAlY and sputtered nanocrystalline coatings on a nickel-based single-crystal superalloy.CORROSION SCIENCE,123,27-39.
MLA Wang, Jinlong,et al."Hot corrosion of arc ion plating NiCrAlY and sputtered nanocrystalline coatings on a nickel-based single-crystal superalloy".CORROSION SCIENCE 123(2017):27-39.
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