Electron beam melting (EBM) is a powder bed fusion additive manufacturing (AM) technique that produces three-dimensional (3D) parts by fusing metallic powders with a high-energy electron beam. Powder has been major issue for the properties of the final parts. Hence, establishing the effect of powder properties on the final product properties is important for producing parts of quality. In this study, Ta–60Ti, Ta–50Ti, Ta–40Ti was a blend of tantalum and titanium powders. The blend of powder was characterized in terms of the particle size distribution (PSD), bulk and tap density, flowability in Hall Funnel flowmeter and particle morphology. In addition, a universal powder bed (UPB) system was used to characterize the powder behavior raking because the UPB system allows a quick assessment of the powder spreading behavior in AM processes. Surface roughness’s of the powder after raking with universal powder bed (UPB) system, the microstructural heterogeneity, defect distributions were investigated.

中文翻译：

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电子束熔融过程用通用粉末床（UPB）系统表征钽钛粉末

电子束熔化（EBM）是一种粉末床熔融增材制造（AM）技术，通过将金属粉末与高能电子束融合来生产三维（3D）零件。粉末一直是最终零件性能的主要问题。因此，建立粉末特性对最终产品特性的影响对于生产优质零件非常重要。在这项研究中，Ta-60Ti，Ta-50Ti，Ta-40Ti是钽和钛粉末的混合物。粉末共混物的特征在于粒度分布（PSD），堆积密度和振实密度，霍尔漏斗流量计中的流动性以及颗粒形态。此外，通用粉末床（UPB）系统用于表征粉末行为倾斜，因为UPB系统可以快速评估AM过程中的粉末散布行为。