Effect of secondary heating during hardening on the strength of alloy D16 sheet

Secondary heating during hardening is an increase in temperature of the cooled part of an article due to transfer of heat from a hotter part as a result of termination or a sharp reduction in the intensity of heat removal during cooling. Experiments were performed for hardening of sheet specimens of alloy D16. The original alloy was cold-hardened with a degree of deformation of 60% Results are discussed.