Influence of Cold Rolled Deformation Degree and Heating Rates on Crystallite Dimension and Recrystallization Fraction of Aluminum Plates

doi:10.3390/cryst11111428

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	Influence of Cold Rolled Deformation Degree and Heating Rates on Crystallite Dimension and Recrystallization Fraction of Aluminum Plates
	Wang, Yunlei 1; Ren, Liping 1; Dong, Jingren 1; Cao, Chuanchuan 2,3
刊名	CRYSTALS
	2021-11
卷号	11 期号:11
关键词	cold rolling annealing heating rates crystallite dimension recrystallization fraction
DOI	10.3390/cryst11111428
英文摘要	In order to study the microstructure evolution rule of pure aluminum plates during different cold-rolled (CR) deformation degrees and annealing processes, samples with aCR deformation of 50~85%, heating rates of 60~100 & DEG;C/min and annealing at the target temperature of 350~500 & DEG;C were investigated. The microstructure, crystallite dimension and grain boundary characteristics were characterized by the methods of polarizing microscope (PM) and electron backscattered diffraction (EBSD). The results showed that the crystallite dimension of the initial state was 102 mu m and ends up completely broken with an increase in the CR deformation degree. When the CR deformation increases to 85%, the deformed micro-bands were very small, with a band spacing of 5~10 mu m. At this time, the grain distortion is more serious, there are more high-density grain defects, such as dislocations, and there is a high deformation of the storage energy, which is the energy preparation for the subsequent finished products to withstand the annealing process. The recrystallization fraction was higher with an increase in annealing temperature. After completed recrystallization, the grains showed an equiaxed shape. Orientation imaging and misorientation angle analysis showed that the red-oriented grains of the (001) plane, which had preferred nucleation, recrystallization and rapid grain growth. Final grains of the completed recrystallization are relatively coarse. Under the same deformation, the average crystallite dimension of the recrystallized grains decreases with an increase in annealing heating rate.
WOS研究方向	Crystallography ; Materials Science
语种	英语
出版者	MDPI
WOS记录号	WOS:000725165200001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150064]
专题	兰州理工大学
作者单位	1.Chongqing Univ Arts & Sci, Coll Mat Sci & Engn, Chongqing 402160, Peoples R China; 2.Chongqing Univ Arts & Sci, Coll Intelligent Mfg Engn, Chongqing 402160, Peoples R China; 3.Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yunlei,Ren, Liping,Dong, Jingren,et al. Influence of Cold Rolled Deformation Degree and Heating Rates on Crystallite Dimension and Recrystallization Fraction of Aluminum Plates[J]. CRYSTALS,2021,11(11).
APA	Wang, Yunlei,Ren, Liping,Dong, Jingren,&Cao, Chuanchuan.(2021).Influence of Cold Rolled Deformation Degree and Heating Rates on Crystallite Dimension and Recrystallization Fraction of Aluminum Plates.CRYSTALS,11(11).
MLA	Wang, Yunlei,et al."Influence of Cold Rolled Deformation Degree and Heating Rates on Crystallite Dimension and Recrystallization Fraction of Aluminum Plates".CRYSTALS 11.11(2021).