铁基非晶薄带回线偏移行为研究

• 作 者: 张守华 程星华 刘涛 何峻 周磊 喻晓军 李波
• 机 构: 安泰科技股份有限公司,钢铁研究总院功能材料研究所,
• 出 处: 金属功能材料
• 发表日期: 2016年04期
• 关键词: 非晶薄带 热磁退火 非对称磁滞回线 微晶相 钴基非晶带 热磁处理 磁滞回线 磁退火 对称特性 薄带

Fe65Co15Si5B15非晶薄带经双偏圆形磁场处理后,磁滞回线呈不对称特性,这种特性可以在室温下获得。通过XRD、DSC和SPM等测试手段研究了热磁处理过程中薄带微结构的变化,这种具有回线偏移行为的铁基非晶薄带基体上有磁性较硬的微晶相产生。这种特定的热磁操作对薄带内磁畴配置有明显的影响,它也是导致Fe65Co15Si5B15非晶薄带磁滞回线发生偏移的主要因素之一。所采用的热磁处理办法可使铁基非晶薄带磁滞回线发生有效、可靠和明显的偏移行为。

After the Fe65Co15Si5B15 amorphous ribbon has been treated by double circular magnetic field, the hysteresis loop is asymmetric and can be obtained at room temperature. The changes of the microstructure of the thin strip during the thermal magnetic treatment were investigated by means of XRD, DSC and SPM. The magnetically amorphous microstructure was formed on the iron-based amorphous ribbon with a loop-back bias. This particular thermal and magnetic operation has a significant effect on the configuration of the magnetic domains in the ribbon and is also one of the main factors that cause the magnetic hysteresis loop of the Fe65Co15Si5B15 amorphous ribbon to shift. The adopted thermal magnetic treatment method can make effective, reliable and obvious migration behavior of iron-based amorphous ribbon hysteresis loop.