Selective laser melting (SLM) as an additive manufacturing method makes it possible to quickly produce complexly shaped three-dimensional (3D) metal specimens from a powder. This work describes how SLM affects the surface phase composition of 3D printed specimen, analyzed with conversion electron Mössbauer spectroscopy (CEMS), X-ray (CXMS) and diffraction (XRD). Both stainless 1.4404 (CL20ES) s...