17S押出材の引張強さに及ぼす溶体化処理前の予備加熱の効果

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  • Effect of Preheating Prior to Solution Heat-treatment on the Tensile Strength of 17S Extrutions
  • 17S オシダシザイ ノ ヒッパリ ツヨサ ニ オヨボス ヨウタイカ ショリ マエ ノ ヨビ カネツ ノ コウカ

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抄録

The strengthening effect of annealing prior to solution heat-treatment of extruded 17S rods has been studied. The tensile strength of 17S rods was shown to be increased by preheating at suitable temperatures. The improvement in strength, however, did not take place when the extruded temperature was lower than 400°C, and also it could not be observed when manganese was absent in the alloy. The preferable preheating temperature for improvement in tensile strength was determined by the preheating time and the extruding temperature. From the above experimental evidences, it has been concluded that the strengthening effect due to the preheating may be explained in conformity to the constraining effect on boundary migration due to the precipitated particles of manganese compounds in the subboundary regions and the effect as a barrier of the small angle boundary to moving dislocations.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 23 (9), 538-542, 1959

    公益社団法人 日本金属学会

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