The influence of high shear and sand impingement on preferential weld corrosion of carbon steel pipework in CO2-saturated environments

► Influence of high shear and particle impingement on PWC is assessed. ► Parent metal became the anode and the weld material was the cathode. ► Both sand presence and high, local shear stresses influenced PWC resistance. ► Increased shear stress and particle impingement caused PWC in one test. ► This research is important if sand production on oil and gas facilities occurs