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Studies on corrosion behavior of a single-crystal superalloy and its sputtered nanocrystalline coatings with solid NaCl deposit in O-2+38 vol.% H2O environment at 700 degrees C
Sun, Wenyao1,2; Wang, Jinlong3; Yang, Lanlan4; Chen, Minghui3; Bao, Zebin1; Zheng, Chengyue3; Zhu, Shenglong1,2; Wang, Fuhui3
Corresponding AuthorChen, Minghui(mhchen@mail.neu.edu.cn) ; Bao, Zebin(zbbao@imr.ac.cn)
2019-12-01
Source PublicationCORROSION SCIENCE
ISSN0010-938X
Volume161Pages:12
AbstractCorrosion behavior of the N5 superalloy (Ni-7.0 Cr-6.2 Al-7.5 Co-5.0 W-1.5 Mo-6.5 Ta-3.0 Re) and two nanocrystalline coatings prepared by magnetron sputtering is investigated in chlorine and water vapor environment at 700 degrees C. The alloy shows low corrosion resistance. Its oxide scale spalls off readily and includes porous NiO outer layer and NiCr(Al)(2)O-4 inner one. The nanocrystalline coating performs better. Its oxide scale consists of Al2O3, NiO and Ta2O5. Chlorination and/or oxidation of Ta ruined compactness of scale. The yttrium modified nanocrystalline coating provides the highest corrosion resistance. Its scale is exclusively alumina. Yttrium inhibits the outward diffusion of Ta.
KeywordSuperalloys Metal coatings STEM Chlorination
Funding OrganizationNational Key R&D Program of China ; National Natural Science Foundation of China
DOI10.1016/j.corsci.2019.108187
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2017YFB0306100] ; National Natural Science Foundation of China[51671053] ; National Natural Science Foundation of China[51801021]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000497887900010
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/136159
Collection中国科学院金属研究所
Corresponding AuthorChen, Minghui; Bao, Zebin
Affiliation1.Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, Shenyang 110016, Liaoning, Peoples R China
2.Univ Sci & Technol China, Coll Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China
3.Northeastern Univ, Shenyang Natl Lab Mat Sci, Shenyang 110819, Liaoning, Peoples R China
4.Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212003, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Sun, Wenyao,Wang, Jinlong,Yang, Lanlan,et al. Studies on corrosion behavior of a single-crystal superalloy and its sputtered nanocrystalline coatings with solid NaCl deposit in O-2+38 vol.% H2O environment at 700 degrees C[J]. CORROSION SCIENCE,2019,161:12.
APA Sun, Wenyao.,Wang, Jinlong.,Yang, Lanlan.,Chen, Minghui.,Bao, Zebin.,...&Wang, Fuhui.(2019).Studies on corrosion behavior of a single-crystal superalloy and its sputtered nanocrystalline coatings with solid NaCl deposit in O-2+38 vol.% H2O environment at 700 degrees C.CORROSION SCIENCE,161,12.
MLA Sun, Wenyao,et al."Studies on corrosion behavior of a single-crystal superalloy and its sputtered nanocrystalline coatings with solid NaCl deposit in O-2+38 vol.% H2O environment at 700 degrees C".CORROSION SCIENCE 161(2019):12.
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