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Orientation relationship and interfacial structure between alpha-Nb5Si3 and Nb solid solution in the eutectic lamellar structure

文献类型：期刊论文

作者Cheng, Guangming1,3; Tian, Yuxin2; He, Lianlong1; Guo, Jianting2
刊名PHILOSOPHICAL MAGAZINE
出版日期2009
卷号89期号:31页码:2801-2812
关键词microstructure orientation relationship interfacial structure alpha-Nb5Si3 transmission electron microscopy
ISSN号1478-6435
DOI10.1080/14786430903128015
通讯作者He, Lianlong(llhe@imr.ac.cn)
英文摘要The 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.
资助项目National Natural Science Foundation of China ; Special Funds for the Major State Basic Research Projects of China[2006CB600905]
WOS研究方向Materials Science ; Mechanics ; Metallurgy & Metallurgical Engineering ; Physics
语种英语
WOS记录号WOS:000271871600003
出版者TAYLOR & FRANCIS LTD
资助机构National Natural Science Foundation of China ; Special Funds for the Major State Basic Research Projects of China
源URL[http://ir.imr.ac.cn/handle/321006/95751]  
专题金属研究所_中国科学院金属研究所
通讯作者He, Lianlong
作者单位1.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
推荐引用方式
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.

入库方式： OAI收割

来源：金属研究所

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