Research Article
Effect of Microstructure on Hydrogen Diffusion in Weld and API X52 Pipeline Steel Base Metals under Cathodic Protection
Figure 11
Anodic and cathodic polarization curves of the base metal (BM) and weld metal (WM) of the API X52 carbon steel immersed in the NS4 synthetic soil solution and NS4 + sodium thiosulfate 10−2 M modified solution.