Standard method for microCT-based additive manufacturing quality control 4: Metal powder analysis

Abstract

X-ray micro computed tomography (microCT) can be applied to analyse powder feedstock used in additive manufacturing. In this paper, we demonstrate a dedicated workflow for this analysis method, specifically for Ti6Al4V powder typically used in commercial powder bed fusion (PBF) additive manufacturing (AM) systems. The methodology presented includes sample size requirements, scan conditions and settings, reconstruction and image analysis procedures. We envisage this method will support standardization in powder analysis in the additive manufacturing community. This is aimed at ultimately improving the quality of additively manufactured parts, through the identification of impurities and defects in powders. • MicroCT analysis of metal powders for additive manufacturing • Method describes a standard workflow simplifying usage of the technique • Sample requirements and image analysis workflow is described Methods name: Standard method for microCT-based additive manufacturing quality control 4: metal powder analysis, Keywords: Additive manufacturing, MicroCT, X-ray, Tomography, Non-destructive testing, Powder, Particle, Characterization