Fe-Ta系半硬質磁性合金「Recalloy」の特性について

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タイトル別名
  • On the Properties of Semihard Magnetic Alloys “Recalloy” in the Fe-Ta System
  • Fe Taケイ ハン コウシツ ジセイ ゴウキン Recalloy ノ トクセ
  • On the Properties of Semihard Magnetic Alloys “Recalloy” in the Fe-Ta System

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抄録

Magnetic properties, electrical resistivity, hardness and microstructure have been studied for the Fe-Ta alloys containing less than 7%Ta. The alloys are water-quenched from various temperatures over the α-γ transformation point, cold-drawn by more than 50% reduction in area and then reheated at 400∼1000°C for less than 5 h.<BR>The magnetic properties of those alloys depend remarkably on the reduction rate, reheating temperature and reheating time after solution treatment. An Fe-2.9%Ta alloy reheated at 700°C for 30 min after water-quenching from 1050°C and cold-drawing of 97.2% reduction exhibits the following excellent properties: magnetic induction at 8 kA/m B8=1,78 T, residual induction Br=1.59 T, coercive force Hc=0.95 kA/m, squareness ratio Br⁄B8=0.89 and squareness \sqrt(BH)max⁄BrHc=0.92. The electrical resistivity and Vickers hardness of this alloy are 0.127 μΩ·m and 209, respectively.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 42 (3), 280-284, 1978

    公益社団法人 日本金属学会

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