Work

Investigating intrinsic material properties of additively manufactured materials via laser interferometry

Year: 2025

Type: conference-paper

Abstract: This study employs laser interferometry to investigate the effects of key L-PBF parameters on the material dynamic response. The microstructural characteristics of AMed materials are directly influenced by process-induced thermal gradients, which impact solidification behavior and defect formation. High frequency laser interferometry enables precise characterization of the material’s dynamic properties. By correlating these properties with processing conditions, we establish quantitative relationships between energy input, melt pool dynamics, and the resultant material structure. Additionally, laser-based dynamic modulus measurements offer a non-destructive approach to evaluating elastic properties and mechanical anisotropy, which are crucial for performance predictions. By integrating laser interferometry with conventional characterization techniques (microstructural investigations, tensile tests and fractographic analysis), we demonstrate a robust methodology for assessing the intrinsic properties of AM materials.

Source: IOP Conference Series Materials Science and Engineering

DOI: 10.1088/1757-899x/1332/1/012023

Authors: Giuseppe Macoretta, Michele Abruzzo, Gualtiero Fantoni, Bernardo Disma Monelli, Luca Romoli

Institution: University of Pisa

Language: English

Topic: Additive Manufacturing Materials and Processes

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

Funder: European Commission

Award: G2649423451