Correlation between various kinds of toughness measure

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  • 種々の靱性指標の間の相関
  • シュジュ ノ ジンセイ シヒョウ ノ アイダ ノ ソウカン

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Abstract

There are known many expressions of correlation between various kinds of fracture measure such as fracture toughness and Charpy energy. The present paper presents a model which makes it possible to explain basis of these expressions on the Beremin model. It is suggested that the difference of the transition temperatures between static toughness and dynamic one decreases with increase in strength of steel as far as steels of high toughness are concerned, but has a tendency to decrease with rise of the static toughness transition temperature when viewed over all steels regardless of toughness.

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