Preparation and properties of spherical molybdenum alloy powders by plasma rotating electrode process
The spherical molybdenum and molybdenum alloy TZM powders were prepared by plasma rotary electrode atomization technology,and the particle size distribution,oxygen content,micromorphism and sur-face tissue of tungsten powder were characterized by laser particle size analyzer,O-N analyzer,scanning elec-tron microscope(SEM).The results show that the oxygen increments of both powders are under 50×10-6,the powder particle size is concentrated in a single-peak distribution of 45-150 pm.Because of the smaller surface tension of TZM,which has a smaller median particle size than Mo powder,and the powder has high surface quality and better process performance,which provides theoretical support for the evaluation of palladium and vanadium alloy powder for additive manufacturing.