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Microstructure and mechanical behaviour of nano-eutectic fe(83)b(17) alloy prepared by a self-propagating high temperature synthesis combining rapid solidification
Fu, Licai1,2; Yang, Jun1; Bi, Qinling1; Li, Laijun1,2; Liu, Weimin1
刊名Journal of physics d-applied physics
2008-12-07
卷号41期号:23页码:5
ISSN号0022-3727
DOI10.1088/0022-3727/41/23/235401
通讯作者Yang, jun(jyang@lzb.ac.cn)
英文摘要The limited room temperature ductility of nanostructured materials with uniform grain size distribution restricts practical applications. to circumvent this problem, we employ a self-propagating high temperature synthesis combining a rapid solidification process to prepare the bulk nano-eutectic fe(83)b(17) alloy, which can lead to simultaneous high strength and large ductility. the microstructure of the fe(83)b(17) alloy has been examined in detail using x-ray diffraction, scanning electron microscopy and transmission electron microscopy. the fe83b17 alloy is composed of the eutectic of tetragonal fe(2)b and alpha-fe phases. the t-fe(2)b and alpha-fe phases display a fine lamellar eutectic structure with lamellar spacing of about 50 nm. the size of the eutectic colonies is in the range 3-25 mu m. high yield strength (1089mpa) and large ductility (similar to 24.9%) are observed simultaneously in mechanical behaviour tests. the rotation of the eutectic colonies, accompanying viscosity plastic flows to release the localization of the shear stress, can contribute to the simultaneous high strength and large ductility.
WOS关键词GRAIN-SIZE DISTRIBUTION ; NANOCRYSTALLINE METALS ; DEFORMATION
WOS研究方向Physics
WOS类目Physics, Applied
语种英语
出版者IOP PUBLISHING LTD
WOS记录号WOS:000261052500049
内容类型期刊论文
URI标识http://www.corc.org.cn/handle/1471x/2385530
专题中国科学院大学
通讯作者Yang, Jun
作者单位1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
推荐引用方式
GB/T 7714
Fu, Licai,Yang, Jun,Bi, Qinling,et al. Microstructure and mechanical behaviour of nano-eutectic fe(83)b(17) alloy prepared by a self-propagating high temperature synthesis combining rapid solidification[J]. Journal of physics d-applied physics,2008,41(23):5.
APA Fu, Licai,Yang, Jun,Bi, Qinling,Li, Laijun,&Liu, Weimin.(2008).Microstructure and mechanical behaviour of nano-eutectic fe(83)b(17) alloy prepared by a self-propagating high temperature synthesis combining rapid solidification.Journal of physics d-applied physics,41(23),5.
MLA Fu, Licai,et al."Microstructure and mechanical behaviour of nano-eutectic fe(83)b(17) alloy prepared by a self-propagating high temperature synthesis combining rapid solidification".Journal of physics d-applied physics 41.23(2008):5.
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