EFFECTS OF FERRITE GRAIN SIZE, NOTCH ACUITY AND NOTCH LENGTH ON BRITTLE FRACTURE STRESS OF NOTCHED SPECIMENS OF LOW CARBON STEEL.

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作者：

Yokobori, Takeo

Konosu, Shinji

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来源：

Reports of The Research Institute for Strength and Fracture of Materials, Tohoku University | 1977年 / 13卷 / 02期

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摘要：

The effects of ferrite grain size, notch acuity and notch length on brittle fracture stress and fracture toughness of notched specimens were experimentally studied at minus 196 degree C for a low carbon steel. For the case of smaller notch root radius, fracture stress and fracture toughness are not so much conspicuously affected by ferrite grain size. The effect of ferrite grain size increases with increase of notch root radius. Future stresses decrease, however, with the increase of grain size diameter almost linearly.

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页码：59 / 73