Abstract FeSiB metallic glass has good soft magnetic properties as a magnetic core material because of high permeability of amorphous matrix. Plastic-strain induced local magnetic deterioration by milling should be prevented. This work presents the results on local magnetic deterioration in the work-hardening layer. Local magnetic fields and crystallization conditions were characterized by micro magnetic induction tests and electron backscatter diffraction, respectively. By utilizing the brittleness of the nanocrystalline during the ductile-brittle transition, high speed milling with speed of 1.5 m/s successfully increased the brittleness of the metallic glass, which led to a thin work-hardening layer with less magnetic deterioration.

中文翻译：

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FeSiB金属玻璃加工硬化层铣削局部磁劣化

摘要 FeSiB金属玻璃由于非晶基体的高导磁率，作为磁芯材料具有良好的软磁性能。应防止由铣削引起的塑性应变引起的局部磁劣化。这项工作介绍了加工硬化层中局部磁性劣化的结果。局部磁场和结晶条件分别通过微磁感应测试和电子背散射衍射表征。通过利用纳米晶在韧脆转变过程中的脆性，以 1.5 m/s 的速度高速铣削成功地增加了金属玻璃的脆性，从而形成薄的加工硬化层，磁性劣化较少。