Effects of grain size and temperature on mechanical properties of nano-polycrystalline Nickel-cobalt alloy

doi:10.1016/j.jmrt.2020.09.060

	Effects of grain size and temperature on mechanical properties of nano-polycrystalline Nickel-cobalt alloy
	Lu, Xuefeng; Dong, Changyu; Guo, Xin; Ren, Junqiang; Xue, Hongtao; Tang, Fuling; Ding, Yutian
	2020
发表期刊	Journal of Materials Research and Technology
ISSN	22387854
卷号	9 期号:6 页码:1316-13173
摘要	Influences of grain size and temperature on the mechanical properties of nano-polycrystalline Ni-Co alloy were investigated with molecular dynamics simulations. It is found that the critical grain size of Hall-Petch relationship is 4.3 nm, at which the maximum flow stress of 4.83 GPa is obtained. In samples with the d > 4.3 nm, the average flow stress increases with the decrease of d, according with the Hall-Petch relationship, caused by the dislocation glide and growth of deformation twin with the breaking of individual grain boundaries. For samples with the d © 2020 The Author(s).
关键词	Atoms Binary alloys Grain boundaries Grain growth Grain size and shape Mechanical properties Molecular dynamics Nanocrystals Nickel alloys Plastic flow Polycrystalline materials Temperature Twinning Grain boundary movements Hall Petch relationship High temperature loadings Individual grain boundaries Inverse Hall-Petch relationships Molecular dynamics simulations Polycrystalline alloys Polycrystalline nickels
DOI	10.1016/j.jmrt.2020.09.060
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000606532900009
出版者	Elsevier Editora Ltda
EI入藏号	20210809937826
EI主题词	Cobalt alloys
EI分类号	548.2 Nickel Alloys ; 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals ; 641.1 Thermodynamics ; 801.4 Physical Chemistry ; 931.3 Atomic and Molecular Physics ; 933.1 Crystalline Solids ; 933.1.2 Crystal Growth ; 951 Materials Science
来源库	WOS
引用统计	被引频次：22[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/150832
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Guo, Xin
作者单位	Lanzhou Univ Technol, Dept Mat Sci & Engn, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China
第一作者单位	兰州理工大学
通讯作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Lu, Xuefeng,Dong, Changyu,Guo, Xin,et al. Effects of grain size and temperature on mechanical properties of nano-polycrystalline Nickel-cobalt alloy[J]. Journal of Materials Research and Technology,2020,9(6):1316-13173.
APA	Lu, Xuefeng.,Dong, Changyu.,Guo, Xin.,Ren, Junqiang.,Xue, Hongtao.,...&Ding, Yutian.(2020).Effects of grain size and temperature on mechanical properties of nano-polycrystalline Nickel-cobalt alloy.Journal of Materials Research and Technology,9(6),1316-13173.
MLA	Lu, Xuefeng,et al."Effects of grain size and temperature on mechanical properties of nano-polycrystalline Nickel-cobalt alloy".Journal of Materials Research and Technology 9.6(2020):1316-13173.