TY JOUR TI Notch effect on the liability of welded joints to intergranular fracture KW welded joints KW heat affected zone KW notch KW mechanism of intergranular fracture KW factors of destruction JO Vestnik of Don State Technical University AU Poletaev , V.. AU Poletaev , Y.. AU Rogozin , D.. PY 2015 IS 15 PB Don state technical University