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Oxidation behavior of NiAl-30.9Cr-3Mo-0.1Dy alloy at high temperature
Zhang, GY; Zhang, H; Wang, ZS; Guo, JT; Zhou, LZ
Corresponding AuthorZhang, GY(zhangguangye7411@163.com)
2006-05-01
Source PublicationRARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
Volume35Issue:5Pages:719-723
AbstractThe isothermal oxidation behavior of NiAl-30.9Cr-Wo-0.1Dy alloy at temperature range of 1300 K similar to 1500 K in air atmosphere has been investigated in this paper. The results reveal that the oxidation resistance is much better than that of NiAl-31Cr-3Mo alloy and the adherence of Al2O3 film can greatly improved due to the formation of continuous and dense layer of Al2O3 formed on the surface of NiAl-30.9Cr-Wo-0.1Dy alloy and the formation of Cr layer between Al2O3 and substrate. The kinetics of isothermal oxidation of NiAl-30.9Cr-Wo-0.1Dy alloy obeys a parabolic rule at 1500 K, and follows the quintic equation at 1300 K and the cubic relation at 1350 K similar to 1450 K. The small amount of Dy doped in NiAl-31Cr-3Mo alloy retards the. transformation of theta-Al2O3 phase into alpha-Al2O3 phase, and decreases the amount of Al2O3 on NiAl phase. The mechanism of oxidation has been also discussed.
Keywordintermetallics NiAl high-temperature oxidation
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000238275000012
PublisherNORTHWEST INST NONFERROUS METAL RESEARCH
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/85946
Collection中国科学院金属研究所
Corresponding AuthorZhang, GY
Affiliation1.Hunan Univ Sci & Technol, Sch Electromechanism Engn, Xiangtan 411201, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Zhang, GY,Zhang, H,Wang, ZS,et al. Oxidation behavior of NiAl-30.9Cr-3Mo-0.1Dy alloy at high temperature[J]. RARE METAL MATERIALS AND ENGINEERING,2006,35(5):719-723.
APA Zhang, GY,Zhang, H,Wang, ZS,Guo, JT,&Zhou, LZ.(2006).Oxidation behavior of NiAl-30.9Cr-3Mo-0.1Dy alloy at high temperature.RARE METAL MATERIALS AND ENGINEERING,35(5),719-723.
MLA Zhang, GY,et al."Oxidation behavior of NiAl-30.9Cr-3Mo-0.1Dy alloy at high temperature".RARE METAL MATERIALS AND ENGINEERING 35.5(2006):719-723.
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