Abstract
Metallic powder production has been an important industrial activity for many years and several methods have been developed to produce metallic particles; including mechanical grinding, chemical reduction, chemical precipitation, electrolysis, and atomization. Physical fragmentation of a liquid metal by fluid impact is described as shotting if the resulting particles are bigger than 150 {micro}m and as atomization if the particles produced are smaller than 150 {micro}m. This paper presents a characterization of particles produced by water shotting. The effect of different operational parameters on characteristics and properties of particle production has been the focus of previous research, however, the effect of water additives on particle characteristics obtained by shotting has not been yet analyzed. During this study, a series of experimental tests were performed to determine if the use of additives in the water during the shotting process of an AISI C115 steel at 1520 C could modify the composition of particle coating, particle coating thickness, grain size in particles, particle microstructure, particle hardness, particle morphology, and particle size distribution.
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