Lee, Dock-Young Kang, Suk-Won Kim, Ki-Bae 2024-01-21T02:33:27Z 2024-01-21T02:33:27Z 2021-09-01 2006-09 1012-0394 https://pubs.kist.re.kr/handle/201004/135219 In this study, in order to develop the cast product of Al alloy having a globular microstructure by using the elctromagnetic (EM) stirrer, which was specially designed and manufactured to induce a various fluid flow type of melt during solidification, a morphlogy and size of primary solid phase of the solidifying slurry was investigated with respect to EM stirring condition such as an induced magnetic flux density (MFD) and a frequency of input current. The magnetic flux density of EM stirrer was measured by using a gaussmeter and its distribution and magnetic force within Al melt was simulated in ANSYS program. The induced MFD was increased with decreasing a frequency of input current at the same input voltage due to the increased penetrating depth of magnetic field. But, the magnetic force related directly with a stirring strength of melt was increased with the frequency. Both a roundness and size of primary a phase of Al alloy was decreased with increasing a frequency of input current and MFD, within the experimental range. Therefore, the primary a phase was refined and globularized at the higher frequency and MFD. English TRANS TECH PUBLICATIONS LTD SEMISOLID STATE METAL-ALLOYS BEHAVIOR Effect of electromagnetic stirring during solidification on the morphological evolution of primary solid phase of Al alloy Article 10.4028/www.scientific.net/SSP.116-117.665 1 SEMI-SOLID PROCESSING OF ALLOYS AND COMPOSITES, v.116-117, pp.665 - 668 SEMI-SOLID PROCESSING OF ALLOYS AND COMPOSITES 116-117 665 668 scie scopus 000241660500149 2-s2.0-85088684241 Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science, Composites Physics, Applied Physics, Condensed Matter Materials Science Metallurgy & Metallurgical Engineering Physics Article; Proceedings Paper SEMISOLID STATE METAL-ALLOYS BEHAVIOR microstructure Al alloy fragmentation rotation angle electromagnetic stirring equiaxed microstructure