Yasuo Kimura1 and Hideo Abe2
1Tokyo Keiki Seizosho Co. Ltd., and now, Mitsubishi Seiko Co. Ltd., Tokyo
An Alnico-8 magnet alloy was prepared by melting in vacuum. The ingots were reduced to 60 ∼ 70% in thickness by rolling at temperature between 1200° and 1000°C. The final thickness was approximately 10 mm. The rolling texture was found to contain three components; (100), (112) and (111)[11 ] orientations. This texture is almost the same as that in the cold low carbon steel. This suggests that the slip direction of the Alnico alloy is < 111 > axis. On heating above 1225°C, recrystallization took place in the rolled Alnico alloy. The recrystallization texture consists of three components; the (100) and (112)[1 0] components scattered by rotation around the normal to the rolling plane and the (111)[11 ] component. A remarkable grain growth was observed on heating at 1300°C.
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