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采用单辊快淬工艺制备了一种低钕含量Ｎｄ９（ＦｅＣｏＺｒＡｌ）８５Ｂ６纳米晶合金，研究了快淬工艺与热处理工艺对该合金纳米晶的形成及磁性的影响。结果表明快淬速度和热处理温度都明显地影响低钕含量Ｎｄ９（ＦｅＣｏＺｒＡｌ）８５Ｂ６纳米晶的形成及其磁性（内禀矫顽力ｊＨｃ，矫顽力ｂＨｃ，剩磁Ｂｒ和最大磁能积（ＢＨ）ｍ）。快淬速度２３ｍ／ｓ制备的非晶态合金，在６８５℃处理３０ｍｉｎ，可获得最佳的磁性，其粘结磁体的密度为６．０１ｇ／ｃｍ３时，Ｂｒ＝６５５ｍＴ，ｊＨｃ＝６３９．２ｋＡ／ｍ，ｂＨｃ＝３８１．６ｋＡ／ｍ，（ＢＨ）ｍ＝６５．６８ｋＪ／ｍ３。
A low-Nd content Nd9 (FeCoZrAl) 85B6 nanocrystalline alloy was prepared by a single roll rapid quenching process. The effects of rapid quenching and heat treatment on the formation and magnetic properties of the nanocrystalline alloy were investigated. The results show that both the quenching speed and the heat treatment temperature obviously affect the formation of Nd9 (FeCoZrAl) 85B6 nanocrystals and their magnetic properties (intrinsic coercivity jHc, coercivity bHc, remanence Br and maximum energy product (BH) m). When the density of the bonded magnet is 6.01g / cm3, the Br = 655mT, jHc = 639.2kA / m, bHc = 381.6 kA / m, (BH) m = 65.68 kJ / m3.