Influence of Heat Treatment on Microstructures and Properties of Nd8Fe78B6Co4 Alloy
来源期刊：Journal of Rare Earths2006年第S1期
论文作者：赵浩峰 刘红梅 苏俊义
文章页码：379 - 381
摘 要：<正>Melt-spun Nd8Fe78B6Co4 magnetic powders and their bonded magnets were prepared with the optimization of compositions and preparation techniques. The microstructure change of alloy NdFeB and the relation between microstruc-ture and heat-treatment were studied. The heat-treatment temperature is 200 700℃. The as-cast structure of the alloy is typically amorphous. Different melt-spun speed and different heat treatment could result in different magnetic properties of NdFeB magnets. Magnetic properties of NdFeB increase with the addition of element Co. The magnetic properties of magnet alloy get the best when the melt-spun speed reaches 23 26 m·s-1, heat treatment temperature is 690℃and time is 30 min.
赵浩峰，刘红梅，苏俊义
摘 要：<正>Melt-spun Nd8Fe78B6Co4 magnetic powders and their bonded magnets were prepared with the optimization of compositions and preparation techniques. The microstructure change of alloy NdFeB and the relation between microstruc-ture and heat-treatment were studied. The heat-treatment temperature is 200 700℃. The as-cast structure of the alloy is typically amorphous. Different melt-spun speed and different heat treatment could result in different magnetic properties of NdFeB magnets. Magnetic properties of NdFeB increase with the addition of element Co. The magnetic properties of magnet alloy get the best when the melt-spun speed reaches 23 26 m·s-1, heat treatment temperature is 690℃and time is 30 min.
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