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The paper presents the results of study of changes in the structure, impact and crack resistance in two sections of the simulated heat-affected zone of low-carbon low-alloy steel with a guaranteed yield strength of 420 MPa (section with large grain and section of complete recrystallization). The simulation of various thermal welding cycles was performed on the Gleeble 3800 complex.
Korotovskaya et al. (Sun,) studied this question.