In situ X-ray imaging of electrochemical dissolution behavior at low current density of as-built additively manufactured AlSi10Mg alloy

•In-situ operandosynchrotron X-ray imaging reveals theelectrochemical dissolution behavior of as-built AMed AlSi10Mg.•Comparative study of different bubble growth at the rough surface and smooth face.•Quantitative analysis of actual consumed electrons and its proportion through bubble behaviors.•The surface roughness evolution at low current density can be divided into three stages.