(1) Pisarenko Institute of Problems of Strength, National Academy of Sciences of Ukraine, Kiev, Ukraine
Abstract:
Charpy impact tests were conducted at different temperatures and loading rates. Temperature dependences of the crack initiation
and propagation energies were determined for carbon steel 45, steels St. 3 and 15Kh2NMFA from the load-time curves obtained
with due account of the impact test results. The effect of the loading rate on the temperature dependence of the impact toughness
was analyzed within the range from 1 to 4.4 m/s.
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Translated from Problemy Prochnosti, No. 1, pp. 29–34, January–February, 2009.