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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

文献类型：期刊论文

作者Sun, Wenyao1,2; Wang, Jinlong3; Yang, Lanlan4; Chen, Minghui3; Bao, Zebin1; Zheng, Chengyue3; Zhu, Shenglong1,2; Wang, Fuhui3
刊名CORROSION SCIENCE
出版日期2019-12-01
卷号161页码:12
关键词Superalloys Metal coatings STEM Chlorination
ISSN号0010-938X
DOI10.1016/j.corsci.2019.108187
通讯作者Chen, Minghui(mhchen@mail.neu.edu.cn) ; Bao, Zebin(zbbao@imr.ac.cn)
英文摘要Corrosion 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.
资助项目National Key R&D Program of China[2017YFB0306100] ; National Natural Science Foundation of China[51671053] ; National Natural Science Foundation of China[51801021]
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000497887900010
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构National Key R&D Program of China ; National Natural Science Foundation of China
源URL[http://ir.imr.ac.cn/handle/321006/136158]  
专题金属研究所_中国科学院金属研究所
通讯作者Chen, Minghui; Bao, Zebin
作者单位1.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
推荐引用方式
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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来源：金属研究所

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