On the potential of Resonant Ultrasound Spectroscopy applied to the non-destructive characterization of the density of (LPBF) additively manufactured materials

• DOI: 10.1016/j.addma.2022.103037
• Publication Date: 2022-07-13T06:18:26Z
• Authors: Florian Le Bourdais; Jitendra Singh Ra...; Camille Ly; Michel Pellat; Caroline Vienne; Vincent Bonnefoy; Vincent Bergeaud; Jean-Paul Garandet
• Keywords: Resonant ultrasound spectroscopy; Characterization

The objective of the present work is to investigate potential Resonant Ultrasound Spectroscopy (RUS) as an innovative technique for nondestructive analysis Laser Powder Bed Fusion (LPBF) AlSi7Mg0.6 parts. acoustic resonance measurements are tested against experimental database that covers a broad range process parameters and large variations standard volumetric energy density. Two other techniques used assess RUS additively manufactured samples: easy-to-use Archimedes density measurement cost-intensive computerized X-ray tomography. Our results show provides both qualitative quantitative insights allow detection amount lack fusion porosities estimation elastic properties fabricated samples. Quantitative correlations between three testing methods obtained, hinting at how could be effectively systematic post-production LPBF