Fe-Cr系合金の電気抵抗歪率および電気的特性におよぼすCoあるいはNi添加の影響について

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タイトル別名
  • Effect of the Addition of Cobalt or Nickel on the Strain Gauge Factor and Electrical Properties of Iron and Chromium Alloys
  • Fe-Crケイ ゴウキン ノ デンキ テイコウ ワイリツ オヨビ デンキテキ トクセイ ニ オヨボス Co アルイハ Ni テンカ ノ エイキョウ ニ ツイテ

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抄録

The present investigators already measured the strain gauge factor K and electrical properties on the wires of Fe-Cr alloys containing less than 50% chromium, and obtained the largest value of 6.2 in K for the alloy containing 20% chromium. So they have further investigated the influence of the addition of less than 70% cobalt or 65% nickel on their properties. Although K of Fe-Cr alloys shows some decrease with increasing cobalt or nickel content, the electrical resistivity ρ increases considerably, while the mean temperature coefficient of electrical resistivity Cf and the mean thermo-electromotive force Emf relative to copper decrease and reach comparatively small values. The results for Fe-15%Cr-35%Co and Fe-10%Cr-20%Ni alloys show that K is 3.9 and 3.7, ρ is 88.6 and 86.0 μΩ-cm, Cf is 2.6×10−4 and 3.0×10−4, and Emf is −0.1 and −4.7 μV/°C, respectively.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 32 (9), 852-855, 1968

    公益社団法人 日本金属学会

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