Effect of Heat Treatment Temperature on Microstructure and Corrosion Resistance of TA1/304 Composite Plates

Abstract:

The corrosion resistance and corrosion mechanism of TA1/304 composite plates after heat treatment at different temperatures were studied by simulating electrochemical experiments in artificial seawater (3.5wt% NaCl solution). The interfacial diffusion and microstructure evolution were studied. The results show that the diffusion range of interfacial elements and the thickness of the diffusion layer change with the heating temperatures. Because of its special structure and composition, the TA1/304 composite plate shows excellent corrosion resistance in Cl^--containing corrosive media, and its corrosion resistance is significantly better than that of ordinary steel plates. Meanwhile, it is found that the heat treatment process of the composite plate has a significant impact on its corrosion resistance. After annealing at 600 °C, the corrosion resistance of the composite plate is improved, and corrosion properties of rolled surface is much greater than that of the cross-section. This research achievement provides important theoretical basis and technical support for the further application of TA1/304 composite plates in fields with strict corrosion resistance requirements, such as chemical engineering and marine engineering.