Characterization of nanoparticle emission during laser cladding with stainless steel powder

Different measurement methods and instruments ware used to characterize the properties of the generated smoke while building-up a part from different stainless steel alloy powders with powder-based laser cladding technique. The number and mass concentrations of the particles were measured by an optical particle counter, an aerodynamic particle sizer and a scanning mobility particle sizer. The particles were also sampled by a cascade impactor and microscopy were utilized to characterize the morphology of the particles.