Erosion and Corrosion Behavior of Solid Particles on the Inner Wall of Titanium Welded Pipe

To study the internal wall particle erosion corrosion behavior of domestic and imported nuclear power plant condenser titanium welded tubes, the paper dynamically simulated the cooling water system of a steam turbine condenser and subjected domestic and imported titanium welded tubes to artificially configured water quality and flow velocity. The experimental results of erosion corrosion showed that the domestic titanium welded tubes had excellent corrosion resistance in seawater, with a corrosion rate of only 0.001 to 0.002mm/a. By observing the changes in the weld seam and original titanium inner surface of the tubes before and after erosion using a scanning electron microscope, no obvious erosion marks were found on the surface, indicating that domestic titanium welded tubes can match the corrosion resistance of imported titanium welded tubes.