Effect of pouring temperature on semi-solid slurry of A356 Al alloy prepared by weak electromagnetic stirring

• Published in: Transactions of Nonferrous Metals Society of China Vol. 16; no. 1; pp. 71 - 76
• Main Author: 刘政 毛卫民 赵振铎
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.02.2006; School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China; Faculty of Material and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China%School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
• Subjects: A356 Al alloy; low superheat pouring; semi-solid slurry; weak electromagnetic stirring; 半固态加工; 浇注温度; 电磁搅拌; 铝合金; low superheat pouring; A356 Al alloy; semi-solid slurry; weak electromagnetic stirring
• ISSN: 1003-6326
• DOI: 10.1016/S1003-6326(06)60013-7

The semi-solid slurry of A356 Al alloy was manufactured by low superheat pouring and weak electromagnetic stirring. The effects of pouring temperature on the slurry manufactured by weak electromagnetic stirring were researched. The results indicate that it is feasible to manufacture the slurry with particle-like primary phases by low superheat pouring and weak electromagnetic stirring, and there is an important effect of the pouring temperature （superheat temperature） on the morphology and the size of primary α -Al in A356 Al alloy. By the action of suitable weak electromagnetic stirring, increasing pouring temperature to put low superheat pouring in practice is capable of obtaining semi-solid slurry of A356 Al alloy with particle-like primary phase. Compared with the samples made only by low superheat pouring without stirring, raising pouting temperature by 15-35℃ above the liquidus temperature under condition of weak electromagnetic stirring can ensure the same grain size and morphology of the primary phase.