PSI - Issue 41

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2022) 000–000

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 41 (2022) 199–207

© 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the MedFract2Guest Editors. Abstract The Additive Manufacturing (AM) process is nowadays considered a valid alternative to produce complex shape components in AISI316L stainless steel. Although many manufacturers consider additive manufacturing a fast and economical production method compared to traditional ones, there are still problems regarding the mechanical behaviour of components obtained with rapid prototyping. The purpose of this work is to investigate the difference in mechanical behaviour between AISI316L obtained with the traditional method and that obtained by Selective Laser Melting. In order to obtain a correlation among mechanical behaviour and microstructure, static tensile tests, monitoring the energy release of the material, were performed. Failure analysis was carried out by means of optical and scanning electron microscopy with energy dispersive spectrometry (SEM/EDS). Furthermore, the composition and crystal structure were analysed by XRF and XRD. Differences between traditional and AM material were highlighted, both from energy release and microstructure point of view. © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the MedFract2Guest Editors. Keywords: Static Thermographic Method; Additive Manufacturing; Mechanical Behaviour 1. Introduction The AISI316L stainless steel (SS316L) is a kind of austenitic steels that nowadays is commonly used in many industrial applications such as aerospace (Pradeep et al. (2020)), automotive (Mohammed et al. (2020)) or 2nd Mediterranean Conference on Fracture and Structural Integrity Correlation between mechanical behaviour and microstructural features of AISI 316L produced by SLM Danilo D’Andrea*, Giacomo Risitano, Eugenio Guglielmino, Elpida Piperopoulos, Dario Santonocito University of Messina, Department of Engineering, C.da di Dio (S. Agata), 98166 Messina (Italy)

* Corresponding author. Tel.: +39 3930209246. E-mail address: dandread@unime.it

2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer-review under responsibility of the MedFract2Guest Editors.

2452-3216 © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the MedFract2Guest Editors. 10.1016/j.prostr.2022.05.022