摘要
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.
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.
出处
《中国有色金属学会会刊：英文版》
CSCD
2003年第3期473-483,共11页
Transactions of Nonferrous Metals Society of China
基金
Project(G19990 64 90 5 )supportedbytheNationalKeyFundamentalResearchandDevelopmentProgramofChina
关键词
铝合金
电磁场
电磁铸造
凝固
显微结构
偏析
裂纹
表面质量
LFEMC
LFEVC
Al alloy
electromagnetic field
frequency
intensity
solidus
liquidus
content of alloying elements
macrosegregation
residual stress
surface quality
