δ/γ二相ステンレス鋼の超塑性挙動

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書誌事項

タイトル別名
  • Superplastic Behaviour of δ/γ Duplex Stainless Steel
  • δ/γ2相ステンレス鋼の超塑性挙動
  • デルタ ガンマ2ソウ ステンレス コウ ノ チョウソセイ キョドウ
  • Superplastic Behaviour of δ/γ Duplex Stainless Steel

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抄録

A δ-ferrite/γ-austenite duplex stainless steel was recrystallized by rolling at 673 K and subsequent annealing. The superplastic behaviour of alloy sheets prepared by above processing has been investigated in the temperature range from 1123 to 1273 K and over a range of strain rates 4.2 × 10-4 to 2.0 × 10-2s-1.<BR>The In σ vs. In ε curves were obtained and it was shown that the conditions obtaining the maximum strain-rate sensitivity index m changed from the constant strain rate at temperatures above 1223 K to the constant flow stress below 1223 K, so that the In σ vs. In ε curves were possible to divide into six regions according to the deformation behaviour.

収録刊行物

  • 鉄と鋼

    鉄と鋼 73 (2), 333-340, 1987

    一般社団法人 日本鉄鋼協会

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