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DYNAMIC FRACTURE STUDY ON CrNiMoV ALLOY STEEL UNDER DIFFERENT HEAT TREATMENTS AND IMPACT RATES
Author(s) -
Sun Y. B.,
Lee K. H.,
Tay T. E.
Publication year - 1994
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/j.1460-2695.1994.tb00818.x
Subject(s) - charpy impact test , materials science , alloy , tempering , quenching (fluorescence) , fracture (geology) , fracture toughness , metallurgy , composite material , toughness , physics , quantum mechanics , fluorescence
— Two methods are employed, namely the Charpy impact test and a strain gauge technique, for the determination of the dynamic fracture toughnesses of CrNiMoV27 and CrNiMoV45 alloy steels under various impact loading rates and heat treatments. The results show that the dynamic fracture toughness K Id is significantly affected by impact velocity and that tempering has a greater influence on K Id than quenching. It is also shown that the alloy containing a greater amount of vanadium yields consistently a higher value of K id .