Solidification of Al alloys under electromagnetic field

来源期刊：中国有色金属学报(英文版)2003年第3期

论文作者：崔建忠

文章页码：473 - 483

Key words：Al alloy; electromagnetic field; frequency; intensity; solidus; liquidus; content of alloying elements; macrosegregation; residual stress; surface quality

Abstract: New theories and technology in the electromagnetic field were put forward about DC casting of Al alloys, including the fundamental research works, i.e, effects of the electromagnetic field on solidus and liquidus, macrosegregation of the main alloying elements, microstructures, content of alloying elements in grains and grain size after solidification under electromagnetic field, and also including a new process-DC casting under low frequency electromagnetic field(LFEMC), which can refine microstructure, eliminate macrosegregation, increase the content of alloying elements within grains, decrease the residual stress, avoid cracks and improve surface quality, and another new process-DC casting under low frequency electromagnetic vibration(LFEVC), which is a high effective method for grain refining.