【摘要】 本文研究了预退火温度和时间对Ｆｅ(７３．５)Ｃｕ１Ｍｏ３Ｓｉ(１３．５)Ｂ９非晶合金在最后退火过程中发生的 晶化及软磁性能的影响。结果表明：在较低温度下预退火能有效地控制合金的晶化过程，降低了最 后退火时所放出的晶化潜热。该合金在４５０℃进行１ｈ预退火发生部分晶化，释放约３２％的晶化 潜热，再经５１０℃保温１ｈ最后退火其磁性能与制备态样品经５１０℃退火后的磁性能相比，最大磁 导率ｍ显著提高，矫顽力Ｈｃ明显下降，Ｂｓ和Ｂｒ无明显变化。更多还原

【Abstract】 The effect of preannealing temperature and time on the nanocrystallization and soft magnetic properties of Fe73.5Cu1Mo3Si13.5B9 amorphous alloy has been studied. The results show that preannealing at lower temperature can effectively control crystallization and reduce the latent heat of crystallization of the alloy in the final annealing. The sample preannealed at 450 for 1h partly occurred crystallization, and that released latent heat of crystallization about 32%. Afterwards sample was annealed at 510 for 1h again, the magnetic properties of the sample were improved obviously compared to the unpreannealed sample, the maximum permeability rose, while coercivity Hc declined.更多还原