18-8Ti型ステンレス鋼管材のクリープ破断特性について

書誌事項

タイトル別名
  • On the Creep Rupture Properties of 18-8 Ti Stainless Steel Tube. (Creep Rupture Properties of 18-8 Ti Stainless Steel, 1st Report)
  • 18-8Tiガタ ステンレス コウカンザイ ノ クリープハダントクセイ ニ ツイテ

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抄録

Investigations of the effect of the grain size, working, and heat treatment on the creep rupture properties of 18-8 Ti stainless steel tube have been carried out. As the result of 650°C creep rupture tests on the tube material, the following conclusions have been reached. (1) It is generally recognised that, in the case of the tube material having fine grain structure, the creep rupture strength is small and the rupture elongation is large. However, our studies indicate that the grain size has not much bearing upon the creep rupture properties. (2) After working, the creep rupture strength in the short-period side becomes large, but at the long period side, it becomes considerably small and the rupture elongation increases. Such a tendency becomes more pronounced in the case of cold working than in hot working. (3) Heat treatment after working has a great effect upon the creep rupture properties. Just simple annealing for softening makes the creep rupture properties worse than those of the material which was subjected to working only. The material will have the better creep rupture properties by being treated at a temperature whithin the range where the maximum possible amount of C and Ti are dissolved as super-saturated solute elements.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 25 (4), 238-241, 1961

    公益社団法人 日本金属学会

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