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Orientation relationship and interfacial structure between alpha-Nb5Si3 and Nb solid solution in the eutectic lamellar structure
Cheng, Guangming1,3; Tian, Yuxin2; He, Lianlong1; Guo, Jianting2
Corresponding AuthorHe, Lianlong(llhe@imr.ac.cn)
2009
Source PublicationPHILOSOPHICAL MAGAZINE
ISSN1478-6435
Volume89Issue:31Pages:2801-2812
AbstractThe orientation relationship (OR) and the interfacial structure of the eutectic alpha-Nb5Si3 and Nb solid solution (Nbss) lamellar microstructure were investigated by transmission electron microscopy (TEM). The OR between alpha-Nb5Si3 and Nbss was determined as (002)(alpha)//(002)(Nb) and [310](alpha)//[110](Nb). In spite of the significant difference in crystal structure between alpha-Nb5Si3 and Nbss, the interface was found to be semi-coherent with good matching. High-resolution TEM images of the alpha-Nb5Si3/Nbss interface are presented to describe the chemistry of the terminating plane of alpha-Nb5Si3. The results revealed that a pure Nb layer not Si or mixed (Nb + Si) layer of the alpha-Nb5Si3 phase was bonded to the Nb phase at the interface. A periodic array of edge-type misfit dislocations, with line direction [1 (1) over bar0](Nb) and Burgers vector 1/2[1 (1) over bar0](Nb), was observed at the interface.
Keywordmicrostructure orientation relationship interfacial structure alpha-Nb5Si3 transmission electron microscopy
Funding OrganizationNational Natural Science Foundation of China ; Special Funds for the Major State Basic Research Projects of China
DOI10.1080/14786430903128015
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China ; Special Funds for the Major State Basic Research Projects of China[2006CB600905]
WOS Research AreaMaterials Science ; Mechanics ; Metallurgy & Metallurgical Engineering ; Physics
WOS SubjectMaterials Science, Multidisciplinary ; Mechanics ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000271871600003
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/95752
Collection中国科学院金属研究所
Corresponding AuthorHe, Lianlong
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Superalloy Div, Shenyang 110016, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Cheng, Guangming,Tian, Yuxin,He, Lianlong,et al. Orientation relationship and interfacial structure between alpha-Nb5Si3 and Nb solid solution in the eutectic lamellar structure[J]. PHILOSOPHICAL MAGAZINE,2009,89(31):2801-2812.
APA Cheng, Guangming,Tian, Yuxin,He, Lianlong,&Guo, Jianting.(2009).Orientation relationship and interfacial structure between alpha-Nb5Si3 and Nb solid solution in the eutectic lamellar structure.PHILOSOPHICAL MAGAZINE,89(31),2801-2812.
MLA Cheng, Guangming,et al."Orientation relationship and interfacial structure between alpha-Nb5Si3 and Nb solid solution in the eutectic lamellar structure".PHILOSOPHICAL MAGAZINE 89.31(2009):2801-2812.
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