Lee, Dock-Young Kang, Suk-Won Cho, Duck-Ho Kim, Ki-Bae 2024-01-21T02:02:28Z 2024-01-21T02:02:28Z 2021-09-01 2006-12 1001-0521 https://pubs.kist.re.kr/handle/201004/134913 Recently, a semi-solid metal processing has been acknowledged as a cost-effective technique to be able to manufacture high quality product for the transportation industry. In this study a hypo-eutectic Al alloy was fabricated by means of an electromagnetic stirrer in continuous casting process and the microstructural change during solidification due to a fluid flow by electromagnetic stirring was examined. Due to the forced fluid flow during solidification a dendritic phase of primary a phase of Al alloy was turned into a globular phase, which can make the Al alloy get a thixotropic behavior in the semi-solid region. In order to establish the quantitative relationship between microstructure and the process parameters, the morphology shape, a silicon distribution and a size of primary a phase were observed according to casting speed in continuous casting machine. The primary a phase was turned into the degenerate dendrites approaching a spherical configuration with increasing casting speed. The fine-grained and equiaxed microstructure appeared at higher casting speed. A segregation behavior of Si element was declined with increasing casting speed and a very uniform distribution of Si element was observed on the billet at a casting speed of 600 mm . min(-1) A thickness of the solidifying shell of the billet was shortened with increasing the casting speed. English NONFERROUS METALS SOCIETY CHINA Effects of casting speed on microstructure and segregation of electromagnetically stirred Aluminum alloy in continuous casting process Article 10.1016/S1001-0521(08)60064-9 1 RARE METALS, v.25, pp.118 - 123 RARE METALS 25 118 123 scie scopus 000244766500024 2-s2.0-42949129175 Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Metallurgy & Metallurgical Engineering Article; Proceedings Paper semi-solid slurry electromagnetic stirring casting speed segregation Al alloy