The relationship between microstructure and fracture parameters when the drop weight tear test of hot rolling low carbon microalloyed linepipe steel - I. F. Pemov; E. A. Goli-Oglu; A. D. Ljuchkov; E. A. Grimalovskaja; E. N. Shebanits; D. I. Zernitskij (Metal and casting of Ukraine, 2012)