Effect of part thickness on the microstructure and tensile properties of 316L parts produced by laser powder bed fusion
Journal article, 2021

Additive manufacturing provides a unique possibility to manufacture parts with advanced design and thin-walled structures. To explore thin-wall capacity, laser powder bed fusion was employed to fabricate 316L samples with different section thicknesses. A detailed microstructure characterization was then carried out, and tensile properties were assessed. It was found that reducing the part thickness did not affect the microstructure but did reduce the tensile properties. Samples with 1 mm thickness exhibited the lowest yield strength of 457 ± 11 MPa and elongation to fracture of 49 ± 20%, while the tensile properties improved when the sample thickness was increased to 3 mm. The 3 mm thick samples generated tensile properties comparable to those of standard dimensions. The results emphasize that part thickness must be considered when assessing mechanical properties and must be adjusted when performing design optimization and simulations of samples produced with laser powder bed fusion.

design for additive manufacturing

microstructure

laser powder bed fusion

build geometry

stainless steel

mechanical properties

Author

Alexander Leicht

Chalmers, Industrial and Materials Science, Materials and manufacture

Camille Nicole Géraldine Pauzon

Chalmers, Industrial and Materials Science, Materials and manufacture

Masoud Rashidi

Chalmers, Industrial and Materials Science, Materials and manufacture

Uta Klement

Chalmers, Industrial and Materials Science, Materials and manufacture

Lars Nyborg

Chalmers, Industrial and Materials Science, Materials and manufacture

Eduard Hryha

Chalmers, Industrial and Materials Science, Materials and manufacture

Advances in Industrial and Manufacturing Engineering

2666-9129 (ISSN) 2666-9129 (eISSN)

Subject Categories

Materials Engineering

Areas of Advance

Materials Science

DOI

10.1016/j.aime.2021.100037

More information

Created

3/1/2021 7