Surface, microstructure, and tensile deformation characterization of LPBF SS316L microstruts micromachined with femtosecond laser

August 09, 2021

Abhi Ghosh (1), Sanchari Biswas (2), Tiffany Turner (1), Anne-Marie Kietzig (2), Mathieu Brochu (1)
Materials & Design, 210, August 2021. DOI: 10.1016/j.matdes.2021.110045


Keywords

Laser powder bed fusion; Stainless steel 316L; Microstruts; Surface roughness; Femtosecond laser; Micromachining; Tensile deformation


Abstract

Considerable surface roughness, dimensional deviation, and non-uniform microstructure are a few of the characteristics found on thin or micro-scale features fabricated via laser powder bed fusion (LPBF) that yield inferior and/or inconsistent mechanical properties. Femtosecond laser micromachining can aid in fabricating micro-scale parts with ultra-high dimensional precision.


How Our Software Was Used

Dragonfly was used to perform 3D reconstruction and analysis of x-ray scans.


Author Affiliation

(1) Department of Mining and Materials Engineering, McGill University, Rm 2140, Wong Building, 3610 University St., Montreal, QC H3A 0C5, Canada.
(2) Department of Chemical Engineering, McGill University, Wong Building, 3610 University St., Montreal, QC H3A 0C5, Canada.