Ultrasonic Evaluation of Segmental Variability in Additively Manufactured Metal Components

Conference · Mon Oct 01 04:00:00 EDT 2018

DOI:https://doi.org/10.1109/ULTSYM.2018.8579663· OSTI ID:2568639

Roy, Manish; Walton, Kenneth; Harley, Joel B.; Skliar, Mikhail

One of the primary challenges with additively manufactured metal components is the potential for the material heterogeneity, such as the variations in density, porosity, and elasticity. These heterogeneities are difficult to predict and can cause the deviation in material strength and structural reliability from the specified design. This paper presents a novel approach to the ultrasound characterization of spatially varying material properties and its application to a sample manufactured by the selective laser melting. The method is demonstrated for a 3D-printed aluminum alloy sample. The independent measurements of the elastic modulus, the surface morphology, and the X-ray computed tomography of the sample were consistent with the ultrasound results.

• Research Organization: University of Utah
• Sponsoring Organization: 2018 IEEE International Ultrasonics Symposium (IUS), Kobe, Japan, 2018, pp. 1-4
• DOE Contract Number: FE0031559; FE0031559
• OSTI ID: 2568639
• Country of Publication: United States
• Language: English