The relationship of dislocation and vacancy cluster with yield strength in magnetic annealed UFG 1050 aluminum alloy

doi:10.1016/j.msea.2016.10.037

	The relationship of dislocation and vacancy cluster with yield strength in magnetic annealed UFG 1050 aluminum alloy
	Wang BY(王宝义)2 ; Wang, Ping 3,4; Zhou, Yizhou 1; Wang, Baoyi2 ; Zhang, Peng 2; Cao, Xingzhong2 ; Cao XZ(曹兴忠)2 ; He, Lizi 3,4; Cao, Yiheng 4; Cui, Jianzhong 3,4
刊名	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2017-01-02
卷号	679 页码:417-427
关键词	Magnetic field Ultrafine grained 1050 alloy Annealing Yield strength Dislocation Vacancy cluster
ISSN号	0921-5093
DOI	10.1016/j.msea.2016.10.037
通讯作者	He, Lizi(helizi@epm.neu.edu.cn)
英文摘要	The evolutions of tensile properties and microstructures of ultrafine grained (UFG) 1050 aluminum alloy after annealing at 90-210 degrees C for 4 h without and with 12 T high magnetic field were investigated by tensile test, electron back scattering diffraction pattern (EBSD), transmission electron microscopy (TEM) and positron annihilation lifetime spectroscopy (PALS). When annealing temperature increases from 90 degrees C to 150 degrees C, the yield strength (YS) of UFG 1050 aluminum alloy increases, it is because that the increase in the density of vacancy clusters due to the activated monovacancies and the high angle boundaries (HABs) having more stable structures, both of them can act as effective barriers to dislocation motion during tensile deformation. When annealing at 210 degrees C, the YS of UFG 1050 aluminum alloy deceases, it is because that the decrease in the vacancy clusters density due to the thermally activated the vacancy clusters annihilating at sinks and the dislocation density decreases. The YS of magnetic annealed samples are lower at 90 degrees C and 150 degrees C due to the lower density of dislocations and vacancy clusters. The difference of YS between samples annealed without and with magnetic field disappears at 210 degrees C due to the sharply reduced strain hardening stage.
资助项目	National Natural Science Foundation of China[51574076] ; Fundamental Research Funds for the Central University[N150902001]
WOS关键词	POSITRON LIFETIME SPECTROSCOPY ; GRAIN-BOUNDARY SEGREGATION ; SEVERE PLASTIC-DEFORMATION ; MEDIUM-CARBON STEEL ; NANOSTRUCTURED METALS ; AL-MG ; AUSTENITIC DECOMPOSITION ; MECHANICAL-PROPERTIES ; PURE TI ; FIELD
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000389087000045
资助机构	National Natural Science Foundation of China ; Fundamental Research Funds for the Central University
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/281845]
专题	中国科学院高能物理研究所
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, Key Lab Nucl Radiat & Nucl Energy Technol, Beijing 100049, Peoples R China; 3.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China; 4.Northeastern Univ, Minist Educ, Key Lab Electromagnet Proc Mat, Shenyang 110819, Peoples R China;
推荐引用方式 GB/T 7714	Wang BY,Wang, Ping,Zhou, Yizhou,et al. The relationship of dislocation and vacancy cluster with yield strength in magnetic annealed UFG 1050 aluminum alloy[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2017,679:417-427.
APA	王宝义.,Wang, Ping.,Zhou, Yizhou.,Wang, Baoyi.,Zhang, Peng.,...&张鹏.(2017).The relationship of dislocation and vacancy cluster with yield strength in magnetic annealed UFG 1050 aluminum alloy.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,679,417-427.
MLA	王宝义,et al."The relationship of dislocation and vacancy cluster with yield strength in magnetic annealed UFG 1050 aluminum alloy".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 679(2017):417-427.