TY JOUR TI Effect of thermal cycle of welding and reheating on structural-constitutional changes of low-alloyed Cr-Ni-Mo-V steel KW weldability KW low-alloyed steel KW heat affected zone (HAZ) KW rate of heat input KW thermal welding cycle KW metallographic test KW coarse-grained structure of HAZ KW grain boundary precipitation KW thermal treatment KW dispersion hardening KW reheat cracking. JO Vestnik of Don State Technical University AU Poletaev , Y.. AU Poletaev , V.. PY 2016 IS 16 PB Don state technical University