The behaviour of low- Alloy high-strength steel after different types of processing for dynamic load

Abstract

Currently, there are new technological processes, which cannot be developed without knowledge of the technological properties of the material under specific, complex and dynamic conditions. One such application is the induction heating and moulding of a material within a few seconds to achieve temperature for warm moulding. This very short heating duration of only a few seconds has an effect on the development of the material structure, and this is reflected during deformation, depending on the stress-strain relationship. If these procedures are to be processed on the new modern types of steel, the development of technology and the measurement of mechanical properties must be done under the conditions of a real technological process. The article presents a method for determining the stress-strain relationship of AHSS steel processed using the QP-P process at a strain rate of 30s-1.