FEATURES OF MICROSTRUCTURE FORMATION IN THE WELDED PIPE JOINTS DURING HIGH-FREQUENCY WELDING AND SUBSEQUENT LOCAL HEAT TREATMENT
Černaâ metallurgiâ. Bûlletenʹ naučno-tehničeskoj i èkonomičeskoj informacii/Černaâ metallurgiâ. Bûlletenʹ naučno-tehničeskoj informacii