Mn-Ni-Mo系非磁性エリンバー型合金について

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タイトル別名
  • Nonmagnetic Elinvar-Type Alloys in the Mn-Ni-Mo System
  • Mn-Ni-Moケイ ヒジセイ エリンバーカタ ゴウキン ニ ツイテ

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Measurements of Young’s modulus at −150∼400°C and of rigidity modulus, thermal expansion and hardness at room temperature have been carried out for Mn-Ni-Mo alloys in the states of cold working and heat treating. In the ternary alloys of 60∼95% Mn, 0∼40% Ni and 0∼25% Mo slow cooling after subjected to heating for 1 hr at 950°C, anomalous changes associated with antiferromagnetic\ ightleftarrowsparamagnetic transformation are observed on the Young’s modulus vs temperature curves. Young’s modulus at room temperature do not show any great difference by the cold-worked and heat-treated states. However, the value increases in general with increasing manganese or molybdenum content. The temperature coefficient of Young’s modulus varies remarkably by the difference in the states of heat treatments and alloy composition. The temperature coefficient of Young’s modulus exhibits a large positive maximum against composition, indicating that the ternary alloys possess the Elinvar property. The variations in rigidity modulus and its temperature coefficient by the heat treatment, cold reduction rate and composition are very similar to those in Young’s modulus and its temperature coefficient. Over the range from about 100 to 650, in Vickers hardness of the alloys is varied in a complicated manner by the difference in heat treatment, cold reduction rate and alloy composition. The corrosion resistivity of Mn-Ni-Mo alloys is fairly good.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 37 (3), 333-337, 1973

    公益社団法人 日本金属学会

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