Affiliations: [a] School of Mechanical Engineering, Xi'an Jiaotong
University, Xi'an, Shaaxi, China | [b] Le Quy Don Technical University, Ha Noi, Vietnam
Correspondence:
[*]
Corresponding author: Shengdun Zhao, School of Mechanical
Engineering, Xi'an Jiaotong University, 28 West Xianning Road, Xi'an 710049,
China. Tel./Fax: +86 29 8266 8607; E-mail: sdzhao@mail.xjtu.sdu.cn
Abstract: A two-dimensional model coupling of the electromagnetic field, the
temperature field and the flow field of preparation of A356 aluminum alloy
semi-solid slurry by electromagnetic stirring (EMS) was established. The Power
Law Cut-Off (PLCO) model was used to model the semi-solid slurry. The effect of
process parameters such as stirring frequency, stirring current, pouring
temperature and crucible preheated temperature on the electromagnetic field,
temperature field and flow field were investigated by finite element code ANSYS
combined with secondary development INTEL FORTRAN software and corresponding
experimental verification. The results show that the electromagnetic field and
flow field increase as stirring frequency and stirring current increase.
Similarly, temperature field and flow field increase as pouring temperature and
crucible preheated temperature increase. However, too high stirring frequency,
stirring current, pouring temperature and crucible temperature may lead to
rapid increase in the flow field, as a result, strongly turbulent flow might
occur. The reasonable process parameters for preparation of A356 alloy
semi-solid slurry by EMS were obtained. The simulation results are
significantly approved with corresponding experimental ones, that verifying the
reliability of the calculation models and the software algorithm.
