Effect of Secondary Explosive Welding on Microstructure and Mechanical Properties of 10CrNi3MoV Steel-Based Composite Plates

The secondary explosive welding process promotes the diffusion of the carbon element and accumulation of chromium carbide, which leads to a decrease of tensile properties and toughness of the material. In this work, the average shear strength value increased from 400 to 421 MPa. The crack of the fatigue specimens started from the inclusions rich in alumina near the surface, and the harmful hard-phase inclusions were exposed because of stress concentration. The maximum load limit of 10CrNi3MoV steel undergoing secondary explosive welding was between 590 and 605 MPa.