Aiming to fully utilize rare earth (RE) resources and develop new high coercivity magnets, the magnetic properties and phase precipitation behavior of Ho-Fe-B alloys were systematically studied. The Ho_12+xFe_82-xB₆ (x = −2, −1, 0, 1, 2) alloys were prepared by melt spinning at various wheel speeds. For the directly quenched Ho₁₂Fe₈₂B₆ alloy, the optimum magnetic properties can be obtained at a wheel speed of 22 m/s with the coercivity H_cj = 1.07 × 10³ kA/m, remanence J_r = 0.45 T and maximum energy product (BH)_max = 36.6 kJ/m³ due to its single Ho₂Fe₁₄B phase structure. A maximum H_cj = 2.95 × 10³ kA/m can also be obtained at 100 K due to the temperature dependence of anisotropy field and existence of spin reorientation of Ho₂Fe₁₄B compound. J_r decreases with decreasing temperature owing to the antiparallel coupling between Ho and Fe moments. The increase of Ho content can enhance the coercivity but deteriorate the remanence. More than 2 at. % reduction of Ho leads to the formation of soft magnetic Ho₂Fe₁₇ phase and greatly reduces the coercivity, which is different from many other RE-Fe-B alloys. The phase precipitation behavior of over-quenched amorphous Ho_12+xFe_82-xB₆ alloys during heat treatment were also studied, and the precipitation of Ho₂Fe₁₄B phase is confirmed in all alloys. Ho₂Fe₁₇ phase precipitates in the Ho₁₀Fe₈₄B₆ alloy at the temperature of 882.7 K. The magnetic properties of over-quenched Ho_12+xFe_82-xB₆ alloys after optimally annealed are similar to the directly quenched alloys. In addition, the corrosion resistance of the directly quenched alloys was also investigated. The present results provide reference for developing highly stable RE-Fe-B based magnets with alternative RE resource.

为充分利用稀土（RE）资源，开发新型高矫顽力磁体，系统研究了Ho-Fe-B合金的磁性能和相析出行为。Ho _{12+ x} Fe _{82- x} B ₆ ( x  = -2, -1, 0, 1, 2) 合金是通过在不同轮速下熔体纺丝制备的。对于直接淬火的Ho ₁₂ Fe ₈₂ B ₆合金，在22 m/s的轮速下可以获得最佳磁性能，矫顽力H _cj  = 1.07 × 10 ³  kA/m，剩磁J _r  = 0.45 T，最大能量积 ( BH) _max  = 36.6 kJ/m ³由于其单一的 Ho ₂ Fe ₁₄ B 相结构。_{由于各向异性场的温度依赖性和Ho 2} Fe ₁₄ B 化合物 的自旋重新取向的存在，在100 K 也可以获得最大H _cj  = 2.95 × 10 ^{3 kA/m。}由于 Ho 和 Fe 矩之间的反平行耦合，J _{r随着温度的降低而降低。}Ho含量的增加可以提高矫顽力，但会降低剩磁。超过2点。Ho 的 % 还原导致软磁性 Ho ₂ Fe _17的形成相并大大降低了矫顽力，这与许多其他RE-Fe-B合金不同。_{还研究了过淬非晶Ho 12+ x} Fe _{82- x} B ₆合金在热处理过程中的相析出行为，证实了所有合金中均出现了Ho ₂ Fe ₁₄ B相的析出。Ho ₂ Fe ₁₇相在882.7 K温度下在Ho ₁₀ Fe ₈₄ B _{6合金中析出。过淬火Ho 12+ x} Fe _{82- x} B ₆的磁性能优化退火后的合金与直接淬火的合金相似。此外，还研究了直接淬火合金的耐腐蚀性。本研究结果为开发具有替代稀土资源的高稳定性RE-Fe-B基磁体提供了参考。