Deformation-induced martensitic transformation in fused filament fabrication austenitic stainless steels during tension at wide range of temperatures (77 K, RT)

Jakub Tabin; Jakub Kawałko; Daniela Schob; Robert Roszak; Adam Brodecki; Piotr Bała; Phillip Maasch; Zbigniew Kowalewski; Matthias Ziegenhorn

doi:10.1016/j.msea.2025.149552

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Title

Deformation-induced martensitic transformation in fused filament fabrication austenitic stainless steels during tension at wide range of temperatures (77 K, RT)

Authors

Jakub Tabin ^{[ 1 ]}
Jakub Kawałko ^{[ 2 ]}
Daniela Schob ^{[ 3 ]}
Robert Roszak (WIM) ^{[ 4 ][ 2.9 ][ P ]}
Adam Brodecki ^{[ 1 ]}
Piotr Bała ^{[ 2 ]}
Phillip Maasch ^{[ 3 ]}
Zbigniew Kowalewski ^{[ 1 ]}
Matthias Ziegenhorn ^{[ 5 ]}

^{[ 1 ]} Institute of Fundamental Technological Research, Polish Academy of Sciences | ^{[ 2 ]} AGH University of Krakow | ^{[ 3 ]} Bundesanstalt für Materialforschung und -prüfung (BAM) | ^{[ 4 ]} Instytut Mechaniki Stosowanej, Wydział Inżynierii Mechanicznej, Politechnika Poznańska | ^{[ 5 ]} Brandenburg University of Technology Cottbus-Senftenberg | ^{[ P ]} employee

Scientific discipline (Law 2.0)

[2.9] Mechanical engineering

Year of publication

2026

Published in

Materials Science and Engineering A

Journal year: 2026 | Journal volume: vol. 950

Article type

scientific article

Publication language

english

Keywords

EN

Abstract

EN This study investigates the mechanical behaviour of fused filament fabrication (FFF) of 316L austenitic stainless steel compared to conventional 316L at room temperature and 77 K, focusing on deformation-induced martensitic transformation (DIMT). Results reveal that the Lüders-like effect, present in conventional 316L at 77 K, is absent in FFF 316L due to porosities that hinder martensitic front propagation. At room temperature, uniform strain distribution and DIMT were observed in conventional 316L, whereas in FFF 316L, martensitic nucleation occurred around pores, serving as a localized strengthening mechanism. Microstructural analysis identified Fe-δ islands along grain boundaries in FFF 316L, which contribute to its multiphase nature. Although FFF 316L demonstrates lower yield stress and elongation compared to conventional 316L, this study does not establish design allowables. The present findings are limited to monotonic tensile behaviour, fatigue performance and corrosion resistance under cryogenic conditions were not assessed. Further optimization of fabrication parameters to minimize ferrite content and porosities is suggested to enhance mechanical performance.

Date of online publication

12.2025

Pages (from - to)

149552-1 - 149552-13

DOI

10.1016/j.msea.2025.149552

URL

https://www.sciencedirect.com/science/article/pii/S0921509325017769?via%3Dihub

Comments

Article Number: 149552

Ministry points / journal

140

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