Microstructure evolutions of semisolid slurry of 2024 wrought aluminum alloy during continuous cooling and isothermal holding

	Microstructure evolutions of semisolid slurry of 2024 wrought aluminum alloy during continuous cooling and isothermal holding
	Li, Yuan-Dong1,2 ; Liu, Xing-Hai 1; Li, Yan-Lei 1; Suo, Jiang-Long 1; Zhou, Hong-Wei 1; Zhang, Xin-Long 1
	2013-11-01
发表期刊	Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals
ISSN	10040609
卷号	23 期号:11 页码:3015-3023
摘要	The microstructure evolutions of 2024 wrought aluminum alloy slurry during continuous cooling and isothermal holding were investigated by a simple technique of water quenching. The results show that during the continuous cooling course, the solid fraction, average particle size and shape factor increase continuously with temperature decreasing. While during the isothermal holding stage, the solid fraction of the slurry fluctuates at the corresponding values, the particle size of the primary solid phase increases continuously, and the shape factor decreases firstly, then increases and finally decreases to a value between 1.3 and 1.4. The increase of solid fraction during continuous cooling is dominated mainly by the precipitation of solid-phase particles in the early stage, and by the growth of solid-phase particles at last. The evolution process of isothermal holding can be divided into three steps: disaggregation of the chain structure, mergence and coarsening, and the final ripening of primary particles. These primary solid particles grow by obeying the Dt3-D03=Kt kinetic law in the whole isothermal holding process.
关键词	Coarsening Cooling Isotherms Particle size Precipitation (chemical) Slurries Continuous cooling Isothermal holding Micro-structure evolutions Semi-solids Wrought aluminum alloy
收录类别	EI
语种	中文
出版者	Central South University of Technology
EI入藏号	20140417221901
EI主题词	Aluminum alloys
EI分类号	541.2 Aluminum Alloys ; 641.2 Heat Transfer ; 801.3 Colloid Chemistry ; 802.3 Chemical Operations ; 951 Materials Science
来源库	Compendex
分类代码	541.2 Aluminum Alloys - 641.2 Heat Transfer - 801.3 Colloid Chemistry - 802.3 Chemical Operations - 951 Materials Science
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/150386
专题	兰州理工大学
作者单位	1.State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China; 2.Key Laboratory of Non-ferrous Metal Alloys and Processing, Ministry of Education, Lanzhou University of Technology, Lanzhou 730050, China
第一作者单位	省部共建有色金属先进加工与再利用国家重点实验室; 兰州理工大学
第一作者的第一单位	省部共建有色金属先进加工与再利用国家重点实验室
推荐引用方式 GB/T 7714	Li, Yuan-Dong,Liu, Xing-Hai,Li, Yan-Lei,et al. Microstructure evolutions of semisolid slurry of 2024 wrought aluminum alloy during continuous cooling and isothermal holding[J]. Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals,2013,23(11):3015-3023.
APA	Li, Yuan-Dong,Liu, Xing-Hai,Li, Yan-Lei,Suo, Jiang-Long,Zhou, Hong-Wei,&Zhang, Xin-Long.(2013).Microstructure evolutions of semisolid slurry of 2024 wrought aluminum alloy during continuous cooling and isothermal holding.Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals,23(11),3015-3023.
MLA	Li, Yuan-Dong,et al."Microstructure evolutions of semisolid slurry of 2024 wrought aluminum alloy during continuous cooling and isothermal holding".Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals 23.11(2013):3015-3023.