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

IHEP OpenIR > 多学科研究中心

	The relationship of dislocation and vacancy cluster with yield strength in magnetic annealed UFG 1050 aluminum alloy
	Cao, YH; He, LZ; Cao, XZ; Zhang, P; Wang, BY; Zhou, YZ; Wang, P; Cui, JZ; Cao XZ(曹兴忠); Zhang P(张鹏); Wang BY(王宝义)
	2017
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (IF:3.094[JCR-2016],3.242[5-Year])
ISSN	0921-5093
EISSN	1873-4936
卷号	679 页码:417-427
文章类型	Article
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.
关键词	Magnetic field Ultrafine grained 1050 alloy Annealing Yield strength Dislocation Vacancy cluster
DOI	10.1016/j.msea.2016.10.037
关键词[WOS]	POSITRON LIFETIME SPECTROSCOPY ; GRAIN-BOUNDARY SEGREGATION ; SEVERE PLASTIC-DEFORMATION ; MEDIUM-CARBON STEEL ; NANOSTRUCTURED METALS ; AL-MG ; AUSTENITIC DECOMPOSITION ; MECHANICAL-PROPERTIES ; PURE TI ; FIELD
收录类别	SCI ; EI ; SCOPUS
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000389087000045
EI入藏号	20164402973123
EI主题词	Annealing - Backscattering - Dislocations (crystals) - High resolution transmission electron microscopy - Magnetic fields - Positron annihilation spectroscopy - Radiation damage - Strain hardening - Tensile testing - Transmission electron microscopy - Yield stress
EI分类号	537.1 Heat Treatment Processes - 541.2 Aluminum Alloys - 701.2 Magnetism: Basic Concepts and Phenomena - 741.3 Optical Devices and Systems - 951 Materials Science
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://ir.ihep.ac.cn/handle/311005/285115
专题	多学科研究中心
作者单位	中国科学院高能物理研究所
第一作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Cao, YH,He, LZ,Cao, XZ,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	Cao, YH.,He, LZ.,Cao, XZ.,Zhang, P.,Wang, BY.,...&王宝义.(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	Cao, YH,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.