Fe-Co-Mn系合金の抵抗歪率ならびに電気的特性

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タイトル別名
  • The Strain Gauge Factor and Electrical Properties of Non-Magnetic Iron-Cobalt-Manganese Alloys
  • Fe-Co-Mnケイ ゴウキン ノ テイコウ ワイリツ ナラビニ デンキテキ トクセイ

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抄録

The strain gauge factor K at room temperature, the electrical resistivity ρ at 20°C, its mean temperature coefficient Cf and the mean thermo-electromotive force relative to copper Emf in the temperature range 0 to 40°C have been measured with the cylindrical wires of Fe-Co-Mn alloys in a cold worked state of about 94% reduction. It has been found that the maximum value of K is 5.4 in Fe-Mn binary alloy containing 30%Mn and decreases gradually with increasing Co content, the non-magnetic γ phase alloys showing the values of more than 4.0. ρ of Fe-Co binary alloys increases monotonously with the addition of Mn, while their Emf shifts from a negative to a positive value with increasing manganese content. Cf of Fe-Mn or Fe-Co binary alloys decreases with increasing Co or Mn content, respectively. Fe-30%Co-45%Mn alloy which exibits the minimum Cf of 2.4×10−4 show K of 4.6, ρ of 98 μΩ-cm and Emf of +0.2 μV/°C.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 36 (10), 1040-1043, 1972

    公益社団法人 日本金属学会

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