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

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	Microstructure evolutions of semisolid slurry of 2024 wrought aluminum alloy during continuous cooling and isothermal holding
	Li, Yuan-Dong 1,2; Liu, Xing-Hai 1; Li, Yan-Lei 1; Suo, Jiang-Long 1; Zhou, Hong-Wei 1; Zhang, Xin-Long 1
刊名	Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals
	2013-11-01
卷号	23 期号:11 页码:3015-3023
关键词	Coarsening Cooling Isotherms Particle size Precipitation (chemical) Slurries Continuous cooling Isothermal holding Micro-structure evolutions Semi-solids Wrought aluminum alloy
ISSN号	10040609
英文摘要	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.
语种	中文
出版者	Central South University of Technology
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113197]
专题	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
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
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.