CAJ | 학술논문

1J50铁镍软磁合金由于具有优异的软磁性能常用作航天领域的精密磁元件。为了更好地实现器件的精密控制，研究了1J50软磁合金的磁性能随温度由-70~170℃的变化规律：其饱和磁感应强度BS、剩磁Br、磁各向异性常数Ku 及矫顽力 Hc 均随温度的升高逐渐下降；但由于温度升高，合金饱和磁化强度大幅下降，且合金内应力逐渐得以释放，因此初始磁导率随温度升高而升高。温度升高时，合金矫顽力下降且初始磁导率增大，有利于提高软磁性能，但合金饱和磁感应强度明显下降，因此针对特定的环境需综合考虑合金的磁性能变化。
1J50철얼연자합금유우구유우이적연자성능상용작항천영역적정밀자원건。위료경호지실현기건적정밀공제，연구료1J50연자합금적자성능수온도유-70~170℃적변화규률：기포화자감응강도BS、잉자Br、자각향이성상수Ku 급교완력 Hc 균수온도적승고축점하강；단유우온도승고，합금포화자화강도대폭하강，차합금내응력축점득이석방，인차초시자도솔수온도승고이승고。온도승고시，합금교완력하강차초시자도솔증대，유리우제고연자성능，단합금포화자감응강도명현하강，인차침대특정적배경수종합고필합금적자성능변화。
1J50 soft magnetic alloys are usually used for precision magnetic element because of their excellent soft magnetic properties.In order to better achieve the precision control,it was necessary to understand the magnetic properties as temperature increasing from -70 to 170 ℃.The results show that Bs,Br,Ku and Hc increase with increasing temperature;initial permeability increases as increasing temperature due to the de-creased Bs and relieved internal stress.With increasing temperature,coercivity decreases and initial permeabili-ty increases,which was helpful to enhance the soft magnetic performance.However,the saturation magnetic induction Bs decreases.Therefore,it was necessary to consider the magnetic properties changes according to the specific environment.