Abstract:By using the melt spinning techniques, the Fe 63 Co 32 Gd 5 alloy ribbons with 15−50 m in thickness and 3 −7 mm in width were prepared at the wheel speeds of 15, 20, 25 and 35 m/s. The rapid solidification microstructures were characterized by three layers, the middle layer of which reaches 80% thickness and forms the column grain of (Fe,Co) solid with Gd solution. Grain refinement takes place with the increase of the wheel speed. And after 0.5 h heat treatment at 823 K, the ribbon thickness becomes larger and … Show more
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