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Oxidation behavior of NiCrAlY coatings prepared by arc ion plating using various substrate biases: Effects of chemical composition and thickness of the coatings
Zhao, Panpan; Shen, Mingli; Gu, Yan; Zhu, Shenglong; Wang, Fuhui; Shen, ML (reprint author), Chinese Acad Sci, Inst Met Res, 62 Wencui Rd, Shenyang 110016, Liaoning, Peoples R China.
2017-09-01
Source PublicationPERGAMON-ELSEVIER SCIENCE LTD
ISSN0010-938X
Volume126Pages:317-323
AbstractNiCrAlY coatings with various Cr and Al contents were prepared on Ni-based superalloy K438G from a single NiCrAlY target by adjusting the substrate bias during high vacuum arc ion plating. The oxidation behavior of the coatings follows the oxide map laws proposed by Wallwork and Hed rather than the guide line based on Cr/Al = 4. As the coatings degrade due to Al depletion, formation of Cr2O3 scales beneath the external alpha-Al2O3 scales was observed. The mechanism for the oxidation of Ni-Cr-Al alloys is discussed.; NiCrAlY coatings with various Cr and Al contents were prepared on Ni-based superalloy K438G from a single NiCrAlY target by adjusting the substrate bias during high vacuum arc ion plating. The oxidation behavior of the coatings follows the oxide map laws proposed by Wallwork and Hed rather than the guide line based on Cr/Al = 4. As the coatings degrade due to Al depletion, formation of Cr2O3 scales beneath the external alpha-Al2O3 scales was observed. The mechanism for the oxidation of Ni-Cr-Al alloys is discussed.
description.department[zhao, panpan ; shen, mingli ; gu, yan ; zhu, shenglong ; wang, fuhui] chinese acad sci, inst met res, 62 wencui rd, shenyang 110016, liaoning, peoples r china
KeywordNicraly Coatings High Temperature Oxidation Arc Ion Plating Bias Voltage
Subject AreaMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China [51301185]; National key Basic Research Program of China (973 Program) [2012CB625100]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79109
Collection中国科学院金属研究所
Corresponding AuthorShen, ML (reprint author), Chinese Acad Sci, Inst Met Res, 62 Wencui Rd, Shenyang 110016, Liaoning, Peoples R China.
Recommended Citation
GB/T 7714
Zhao, Panpan,Shen, Mingli,Gu, Yan,et al. Oxidation behavior of NiCrAlY coatings prepared by arc ion plating using various substrate biases: Effects of chemical composition and thickness of the coatings[J]. PERGAMON-ELSEVIER SCIENCE LTD,2017,126:317-323.
APA Zhao, Panpan,Shen, Mingli,Gu, Yan,Zhu, Shenglong,Wang, Fuhui,&Shen, ML .(2017).Oxidation behavior of NiCrAlY coatings prepared by arc ion plating using various substrate biases: Effects of chemical composition and thickness of the coatings.PERGAMON-ELSEVIER SCIENCE LTD,126,317-323.
MLA Zhao, Panpan,et al."Oxidation behavior of NiCrAlY coatings prepared by arc ion plating using various substrate biases: Effects of chemical composition and thickness of the coatings".PERGAMON-ELSEVIER SCIENCE LTD 126(2017):317-323.
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