摘要
利用电磁场对金属的凝固过程进行控制,具有无污染、无接触以及不改变合金原有成分等其它控制方法所无可比拟的优越性,在材料科学与加工领域受到广泛关注。本文主要简述了电磁场作用于铝、镁合金凝固过程后对凝固组织的影响及其相关应用,简要讨论了不同电磁场下的凝固特点和组织演变,并对今后的研究工作进行了展望:对电磁场作用机制的讨论应更微观化,并加深对电磁场复合技术、强磁场等新兴领域的研究。
Electromagnetic field is utilized to control the metal solidification for its incomparable advantages like non - pollution, non - contact and not changing alloy composition over other methods, which attracted extensive attention in the material science and processing. In this paper,the effect of elec- tromagnetic field on the solidification structure of aluminium and magnesium alloys was mainly reviewed, and the potential industrial applications were briefly pointed out. The solidification characteristic and microstructure evolution in different electromagnetic fields were briefly discussed. At last, sugges- tions were proposed for the further studies： the effect mechanism of electromagnetic field on the solidification process should be discussed more detailed; and researches should pay more attention on the emerging areas like composite technology and high intensity magnetic field technology.
出处
《轻金属》
CSCD
北大核心
2013年第7期48-53,共6页
Light Metals
基金
国家自然科学基金(51275295)
上海航天技术研究院-上海交大航天先进技术联合研究中心资助项目(USCAST2012-15)
高等学校博士学科点专项科研基金(20120073120011)
关键词
电磁场
金属凝固
电磁搅拌
电磁振荡
electromagnetic field
metal solidification
electromagnetic stirring
electromagnetic vibration
