衝撃荷重下におけるアルミニウム-マグネシウム合金多結晶体の引張強さ，伸びについて

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タイトル別名
  • Tensile Strength and Elongation of Aluminum-Magnesium Alloys under Dynamic Loading. (Behavior of Aluminum-Magnesium Alloys under Dynamic Loading, 2nd Report)
  • ショウゲキ カジュウ カ ニ オケル アルミニウム-マグネシウム ゴウキン タケッショウタイ ノ ヒッパリ ツヨサ , ノビ ニ ツイテ

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抄録

The tensile strength and the elongation of aluminum-magnesium alloys (0.86, 2.05 and 4.75%Mg) were studied under dynamic and static loadinng at room temperature. Dynamic loading gave larger tensile strength than static test, by 25% for 0.86%Mg alloy, by 15% for 2.05%Mg alloy and 5% for 4.75%Mg alloy. The specimen with fine grains showed larger tensile strength than that with coarse grains for all the alloys under both static and dynamic test. At dynamic test, a larger value of elongation to fracture was obtained. This phenomenon was interpreted as due to the lack of time during deformations for magnesium atoms to migrate to dislocations and to pin down them. The above interpretation was consistent with the absence of multiple yielding at dynamic test, as previously reported by the authors.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 26 (8), 549-551, 1962

    公益社団法人 日本金属学会

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