The Heat Treatment of the Residual Stress Relieved for Explosive Welded Stainless Steel/Carbon Steel Cladded Plate

The heat treatment of explosive welded stainless steel/carbon steel cladded plates was conducted in order to relieve the residual stress near the welded interface. The mechanical performances of the samples and the microhardness curves of both sides of interface were measured. The compositions of both sides near the interface were analyzed by the scanning electron microscope and the metalloscopy. The results indicate that whether the sample is heat-treated or not, the compositions of both sides of the interface are diffused each other; When the heat-treated temperature below 550 ℃, the mechanical properties and hardness of the samples do not change much. When the temperature above 650 ℃, the hardness reduces but the decarburization of carbon steel in taken placed. At 750 ℃, the phase change is taken place in the carbon steel. Consequently, the optimum heat-treated temperature is possibly 600 ℃.