銅の再結晶温度と溶質元素

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タイトル別名
  • Recrystallization Temperatures of Dilute Copper Alloys
  • ドウ ノ サイケッショウ オンド ト ヨウシツ ゲンソ

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Effects of certain solute elements on the recrystallization temperature of copper have been studied by X-ray, micro-hardness and electrical resistivity measurements. Specimens of copper alloys containing solute elements of 0.01–0.3 at% were melted and cast in vacuo, and cold rolled to 90% reduction. The recrystallization temperatures (the half softening temperatures) of these alloys were obtained from micro-hardness measurements after annealing for 7.2 ks at various temperatures.<BR>All solute elements raised the recrystallization temperature of copper with increase in their contents. The most pronounced influence on the recrystallization temperature was found to be associated with addition of elements which have the much larger linear size factor and the smaller maximum solid solubility. When the electrical resistivity change with cold rolling, ΔρW, was divided into the two parts of the decrement of resistivity during the recovery process. ΔρE, and the decrement during the recrystallization process, ΔρR, strong correlation between the recrystallization temperature and ΔρE⁄ΔρW was indicated. From these experimental results, the magnitude of the increase in the recrystallization temperature seems to be related to the binding energy of solute atoms with vacancy and dislocation.

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  • 日本金属学会誌

    日本金属学会誌 45 (12), 1223-1228, 1981

    公益社団法人 日本金属学会

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