コエリンバー単結晶のヤング率とその温度変化

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タイトル別名
  • Elastic Anisotropy and Its Temperature Dependence of Single Crystals of Co-Elinvar
  • コエリンバータンケッショウ ノ ヤングリツ ト ソノ オンド ヘンカ

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抄録

Measurements of thermal expansions and Young’s moduli at −150∼500°C have been carried out for single crystal specimens, 3 mm in diameter and 120 mm long, of Co-Elinvar. At the same time the rigidity modulus of a polycrystal of the same alloy has been measured at room temperature. The Young’s moduli at 20°C obtained are 9.45×105, 19.47×105 and 30.12×105 kg/cm2 in the ⟨100⟩, ⟨110⟩ and ⟨111⟩ directions, respectively, while the rigidity moduli are 16.71×105, 5.93×105 and 4.88×105 kg/cm2 in the three principal directions, respectively. In both cases, the elastic anisotropies are very large. The Young’s modulus vs temperature curves in the three principal directions show a small maximum at temperatures below the magnetic transformation point. The mean temperature coefficients of Young’s moduli at 0∼40°C in the three principal directions are e⟨100⟩=−0.47×10−5, e⟨110⟩=−3.40×10−5 and e⟨111⟩=−6.77×10−5, respectively.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 36 (11), 1111-1115, 1972

    公益社団法人 日本金属学会

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