Partner: Marzena Pawlik


Recent publications
1.Kopeć M., Dubey Ved P., Pawlik M., Wood P., Kowalewski Z.L., Experimental identification of yield surface for additively manufactured stainless steel 316L under tension–compression-torsion conditions considering its printing orientation, Manufacturing Letters, ISSN: 2213-8463, DOI: 10.1016/j.mfglet.2024.07.003, Vol.41, pp.28-32, 2024
Abstract:

Stainless steel 316L tubes and bars were additively manufactured (AM) by using the Laser Powder Bed Fusion Melting (LPBF-M) method in three orientations. As-built specimens were then machined and the initial yield surface was determined for three printing orientations based on the yield stress definition for 0.005 % plastic offset strain. The as-received, wrought material was additionally tested using the same tension–compression-torsion conditions to compare the mechanical behaviour of AM and wrought SS316L. The sizes of yield surfaces elaborated for LPBF-M specimens increased along the tensile and compressive directions and shrunk when torsion was applied, as compared to the as-received specimen.

Keywords:

Stainless steel ,Yield surface ,Additive manufacturing

Affiliations:
Kopeć M.-IPPT PAN
Dubey Ved P.-IPPT PAN
Pawlik M.-other affiliation
Wood P.-University of Derby (GB)
Kowalewski Z.L.-IPPT PAN

Conference abstracts
1.Dubey V.P., Kopeć M., Pawlik M., Wood P., Kowalewski Z.L., Effect of Build Orientation on the Yield Surface of Stainless Steel 316L Fabricated by Laser Powder Bed Fusion Melting (LPBF-M), BSSM, 18th International Conference on Advances in Experimental Mechanics, 2024-09-03/09-05, Liverpool (GB), pp.1-2, 2024
Abstract:

The Laser Powder Bed Fusion Melting (LPBF-M) method was used to additively manufacture stainless steel 316L tubes in three different orientations. The yield surface approach was implemented to assess the variation of mechanical properties within the as-built specimens. Yield surfaces were determined for each build orientation based on the definition of yield stress for 0.005% plastic offset strain. The initial yield surfaces obtained for the as-built material exhibit anisotropic behaviour, possibly resulting from the preferred grain orientation developed during LPBF-M processing.

Affiliations:
Dubey V.P.-IPPT PAN
Kopeć M.-IPPT PAN
Pawlik M.-other affiliation
Wood P.-University of Derby (GB)
Kowalewski Z.L.-IPPT PAN