Influence of the maximum temperature of the thermal cycle on the properties and structure of the HAZ of steel S700MC

Abstract

-In this paper an influence of simulated thermal cycle on properties and HAZ structure of 10 mm thick S700MC steel plates. Simulation and recording of thermal cycles were tested on laboratory stand equipped in thermovision camera and resistant heat source. Simulation was prepared for simple and complex thermal cycle. Specimens were tested on impact, strength test and also hardness and metallographic tests. Results of researches gave the possibilities to show an influence of welding thermal cycle on properties and HAZ structure of S700MC steel. It was possible also to indicate an optimal linear energy range for welding with high quality.