Rheological characterization of semisolid Al-6.5Si alloys

IMR OpenIR

	Rheological characterization of semisolid Al-6.5Si alloys
	Chen, JY ; Ju, LP ; Li, L
通讯作者	Chen, JY()
	2003-05-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	39 期号:5 页码:476-481
摘要	The rheological model developed by chen et al is applied to study the steady state and transient state behaviour of Al-6.5Si semi-solid metal (SSM) slurries. The application of the model has revealed a number of microstructural and rheological characteristics of SSM slurries. The theoretical analysis shows that there is a strong coupling between the microstructure and the steady state viscosity. It is shown that the steady state viscosity of Al-6.5% decreases with decreasing solid fraction and increasing shear rate. This theoretical prediction is in good agreement with the experimental results in the literature. Concerning time dependent properties, but irrespective of the flow conditions, the apparent viscosity of a SSM slurry with a specified solid fraction is exclusively determined by its structure, while the effect of shear rate and shearing time is reflected by their effect on slurry structure. The deagglomeration kinetics is about two orders of magnitude faster than the agglomeration kinetics for Al-6.5%. The model has also. been successfully applied to predict the hysteresis loops under various cyclic deformation conditions.
关键词	Al-6.5Si semisolid metal slurry rheological behavior microstructure
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000183358400003
出版者	SCIENCE CHINA PRESS
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/116834
专题	中国科学院金属研究所
通讯作者	Chen, JY
作者单位	1.Shenyang Normal Univ, Dept Phys, Shenyang 110034, Peoples R China 2.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Chen, JY,Ju, LP,Li, L. Rheological characterization of semisolid Al-6.5Si alloys[J]. ACTA METALLURGICA SINICA,2003,39(5):476-481.
APA	Chen, JY,Ju, LP,&Li, L.(2003).Rheological characterization of semisolid Al-6.5Si alloys.ACTA METALLURGICA SINICA,39(5),476-481.
MLA	Chen, JY,et al."Rheological characterization of semisolid Al-6.5Si alloys".ACTA METALLURGICA SINICA 39.5(2003):476-481.