Comparison of methods for evaluating the effect of welding thermal cycle on impact toughness of HAZ metal of low-alloy steel welded joints - V. D. Poznjakov; L. I. Markashova; S. L. Zhdanov; E. N. Berdnikova; A. V. Zavdoveev; A. A. Maksimenko (Automatic Welding, 2016)