Determination of Mechanical Behavior of 3D Printed as‐Built Samples of Co–Cr Alloy

This study investigates the mechanical behavior of additively manufactured cobalt–chromium (Co–Cr) alloy samples produced by powder bed fusion (PBF) in the as‐built condition. The material was characterized through density, hardness, and uniaxial compression testing to establish correlations among these properties and evaluate its suitability for aerospace components subjected to compressive loading. The Co–Cr specimens exhibited high density (∼8333 kg/m 3 ) with minimal variation, and an average Vickers hardness of 368 HV30, indicating good material uniformity. Compression tests yielded an average 0.05% offset yield strength of 669 MPa, ultimate compressive strength of 856 MPa, elastic modulus of 212 GPa, and Poisson's ratio of 0.343. These results confirm the mechanical performance of PBF Co–Cr alloys and align closely with values reported in the literature. The experimental data were further applied in a modal analysis of a turbine stator blade to determine its eigenfrequencies and vibration modes. The modal results indicate good stiffness, supporting the alloy's potential for use in complex, load‐bearing aerospace components. This work provides a foundation for future high‐temperature investigations and comparative studies with alternative materials such as Inconel 718.