Related Experiment Video
Updated: Dec 10, 2025

Production of Single Tracks of Ti-6Al-4V by Directed Energy Deposition to Determine the Layer Thickness for Multilayer Deposition
Published on: March 13, 2018
Influence of deposition orientation on fatigue response of LENS™ processed Ti6Al4V
Amit Bandyopadhyay1, Mahadev Upadhyayula1, Kellen D Traxel1
1W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA.
Abstract:
Understanding processing-property relationships for directed-energy-deposition (DED) parts remains a major roadblock to widespread process implementation. Herein we investigate the effect of scanning-strategy and testing-orientation on the fatigue response of as-printed Ti6Al4V components. At ~106 cycles, samples tested in the build-direction exhibited ~ 45% decrease in fatigue strength relative to the horizontally-tested samples, owing to higher overall porosity and the testing orientation relative to residual pores. Samples failing <106 cycles demonstrated tortuous surfaces, whereas samples enduring >106 cycles exhibited smoother-surfaces. Our results indicate that DED-produced parts can exhibit directionally-dependent fatigue performance, and print-strategy must be taken into consideration for dynamic-loading applications.
More Related Videos
12:18Co-localizing Kelvin Probe Force Microscopy with Other Microscopies and Spectroscopies: Selected Applications in Corrosion Characterization of Alloys
Published on: June 27, 2022
09:56Fabrication of Mechanically Tunable and Bioactive Metal Scaffolds for Biomedical Applications
Published on: December 8, 2015
Related Concept Videos
Fatigue
Transformation of Plane Stress
Stress on an Oblique Plane