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Investigation on the High-Temperature Oxidation Resistance of Ni-(3 similar to 10) Ta and Ni-(3 similar to 10) Y Alloys
Duan, Hang; Liu, Yan; Lin, Tiesong; Zhang, Hui; Huang, Zhengren
2019
Source PublicationMETALS
ISSN2075-4701
Volume9Issue:1
SubtypeArticle
AbstractNi-(3 similar to 10) Ta and Ni-(3 similar to 10) Y alloys were fabricated by vacuum arc melting. The oxidation resistance of the alloys was studied by cyclic and isothermal oxidation tests at 800 degrees C in static air. The present work focused on the investigation of the effects of the alloying elements (Ta and Y) on the oxidation behavior of Ni-based alloys. The oxidation behavior of alloys was evaluated by mass gain, composition, as well as the microstructure of oxidized products. The experimental results indicated that Ta at a low content (3 wt %) had a positive role in enhancing oxidation resistance by decreasing the oxygen vacancy concentration of the oxide layer to prevent the inward diffusion of oxygen during oxidation, and the mass gain decreased from 2.9 mg.cm(-2) to 1.7 mg.cm(-2) (800 degrees C/200 h), while Y (3 similar to 10 wt %) degraded the oxidation resistance. However, it is worth mentioning that the pinning effect of Y2O3 increased the adhesion between the substrate and oxide layer by changing the growing patterns of the oxide layer from a plane growth to fibrous growth. Among the results, the bonding of the substrate and oxide layer was best in the Ni-3Y alloys.
KeywordNi-based alloys oxidation resistance cyclic oxidation test Ta and Y
DOI10.3390/met9010097
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
PublisherMDPI
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27422
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Duan, Hang,Liu, Yan,Lin, Tiesong,et al. Investigation on the High-Temperature Oxidation Resistance of Ni-(3 similar to 10) Ta and Ni-(3 similar to 10) Y Alloys[J]. METALS,2019,9(1).
APA Duan, Hang,Liu, Yan,Lin, Tiesong,Zhang, Hui,&Huang, Zhengren.(2019).Investigation on the High-Temperature Oxidation Resistance of Ni-(3 similar to 10) Ta and Ni-(3 similar to 10) Y Alloys.METALS,9(1).
MLA Duan, Hang,et al."Investigation on the High-Temperature Oxidation Resistance of Ni-(3 similar to 10) Ta and Ni-(3 similar to 10) Y Alloys".METALS 9.1(2019).
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