Thermally stable coherent domain boundaries in complex-structured Cr2Nb intermetallics

IMR OpenIR

	Thermally stable coherent domain boundaries in complex-structured Cr2Nb intermetallics
	Zhang, Wei; Du, Kui; Chen, Xingqiu; Sheng, Liyuan; Ye, Hengqiang; kuidu@imr.ac.cn
	2016
发表期刊	PHILOSOPHICAL MAGAZINE
ISSN	1478-6435
卷号	96 期号:1 页码:58-70
摘要	The strength and hardness of nanostructured materials are significantly enhanced owing to the large amount of grain boundaries (GB) produced by a reduced grain size. The thermal stability of the GB is a key to maintaining the grain size and thus the strength/hardness in nanostructured materials at high temperatures. In this work, coherent domain boundaries (DB) were introduced by compressive processing to sub-divide a complex-structured intermetallic Cr2Nb into nanograins of size down to 2nm. These DB persisted after an annealing of 10h at 1273K. The coherent DB have been investigated by aberration-corrected high-resolution transmission electron microscopy and first-principles calculations. The high thermal stability is evidently a result of low formation energies of the DB.
部门归属	[zhang, wei ; du, kui ; chen, xingqiu ; ye, hengqiang] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china ; [zhang, wei ; du, kui] tsinghua univ, beijing natl ctr electron microscopy, beijing 100084, peoples r china ; [sheng, liyuan] peking univ, shenzhen inst, shenzhen key lab human tissue regenerat & repair, shenzhen, peoples r china ; [zhang, wei] brookhaven natl lab, upton, ny 11973 usa
关键词	Nanostructured Materials Thermal Stability Domain Structure Atomic-resolution Electron Microscopy High-temperature Materials Cr2nb
资助者	Natural Sciences Foundation of China [51221264, 51371177, 51390473]; Special Funds for the Major State Basic Research Projects of China [2012CB619503]
收录类别	sci
语种	英语
WOS记录号	WOS:000368724800005
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/75215
专题	中国科学院金属研究所
通讯作者	kuidu@imr.ac.cn
推荐引用方式 GB/T 7714	Zhang, Wei,Du, Kui,Chen, Xingqiu,et al. Thermally stable coherent domain boundaries in complex-structured Cr2Nb intermetallics[J]. PHILOSOPHICAL MAGAZINE,2016,96(1):58-70.
APA	Zhang, Wei,Du, Kui,Chen, Xingqiu,Sheng, Liyuan,Ye, Hengqiang,&kuidu@imr.ac.cn.(2016).Thermally stable coherent domain boundaries in complex-structured Cr2Nb intermetallics.PHILOSOPHICAL MAGAZINE,96(1),58-70.
MLA	Zhang, Wei,et al."Thermally stable coherent domain boundaries in complex-structured Cr2Nb intermetallics".PHILOSOPHICAL MAGAZINE 96.1(2016):58-70.