SPD处理的Cu20（Fe15Co85）80的现场交流滞后测量
In situ AC-hysteresis measurements of SPD-processed Cu20(Fe15Co85)80
摘要：
用交流磁滞回线原位测量方法研究了一种亚稳过饱和固溶体在剧烈塑性形变后热处理时磁性能的变化。在动态损耗理论的框架内对数据进行了分析，并对微观结构特性进行了相关研究。退火后滞后的演变指出，单相过饱和固溶体在高达400 ° C时保持稳定，然后在该温度下阻碍畴壁运动。在600 ° C下，存在多相微观结构，导致结晶度显著增加。
英文摘要：
The changes of magnetic properties upon heat treatment of a metastable supersaturated solid solution processed by severe plastic deformation are investigated by in-situ AC-hysteresis measurements. Data are analyzed in the framework of dynamic loss theory, with correlative investigations of the microstructural properties. The evolution of hysteresis upon annealing points out that the single-phase supersaturated solid solution remains stable up to 400°C, then hindering of domain wall motion sets in at this temperature. At 600°C, a multi phase microstructure is present, causing a significant increase in coercivity.
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