ABSTRACT
ABSTRACT: Material’s weldability is a very complex property, which shows its ability to form a welded joint, by application of the adequate welding procedure. It can be determined in several ways. Weldability estimate procedure, based on the Continuous Cooling Transformation diagrams (CCT) and the measured temperature cycles, is presented in this paper. The objective was to determine the weldability for the purpose of defining the optimal hardfacing technology of the hot working tool steels. The temperature cycles were measured and then the obtained values for the critical cooling time t8/5 were entered into the CCT diagrams to estimate the hardness and microstructure of the welded joint’s zones. Those two parameters are indicators of the steel’s weldability. Experimental investigation was done on the multi-layered hard-faced samples of steel for the forging dies manufacturing.
