journal article·2006-06

Effects of process parameters on surface morphology of metal powders produced by free fall gas atomization

D. Singh, S. Dangwal

Journal of Materials Science· Volume 41· Issue 12
Publisher page

Abstract

There are a number of process parameters which affect the characteristics of metal powders produced by free fall gas atomization. In the following work effects of various process parameters like apex angle of atomizer, focal length of atomizer, number of nozzles, diameter of nozzles, diameter of liquid metal delivery tube, superheat of liquid metal and type of metal etc. were studied on their surface morphology. It was observed that shape of powder particles depends on apex angle, superheat of liquid metal, type of metal and particle size range within a powder collective. Other parameters like focal length of atomizer, number of nozzles, diameter of nozzles and diameter of liquid metal delivery tube were found to have no effect on the shape of powder particles. However, Surface porosity and solidification shrinkage were observed on almost all types of metal powders.
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Research context

OpenAlex topics: Fluid Dynamics and Heat Transfer · Particle Dynamics in Fluid Flows · Granular flow and fluidized beds

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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