Photoelectrochemical visualization in real-time of hydrogen distribution in plastic regions of low-carbon steel

The in-situ scanning photoelectrochemical microscopy is a new technique giving images of hydrogen diffusion in the metals in real time with a good resolution. This paper presents some photoelectrochemical images of hydrogen distribution in a low-carbon steel ahead of a crack tip and in the regions submitted to a high deformation such as in the case of the metal bending.