PSI - Issue 53

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 53 (2024) 144–150

© 2023 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 scientific committee of the ESIAM23 chairpersons Abstract The Additive Manufacturing process, namely the Laser Powder Bed Fusion, enables the 3D printing of components in Aluminum alloys, such as AlSi10Mg. The Aluminum alloys are widely used in aeronautical and automotive industries, whereby it is fundamental the understanding of in-service fatigue behavior. As it is well known the geometrical discontinuities generate stress concentrations that have impact in the fatigue life of the components. In this sense, this work pretends to study the fatigue of notched and unnotched samples of AlSi10Mg manufactured by LPBF under variable loading amplitudes, once most of in-service components are subjected to both these effects. The best achievements of this work were the following: the applied heat treatment generates a better performance for high cycle fatigue for both cases. Some fatigue life prediction models based on the accumulated damage were applied obtaining a good agreement with the experimental results. © 2023 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 scientific committee of the ESIAM23 chairpersons Keywords: Fatigue behaviour; heat treatment; LPBF; Aluminium alloy. Third European Conference on the Structural Integrity of Additively Manufactures Materials (ESIAM23) Effect of heat treatment on fatigue performance of notched and unnotched samples of AlSi10Mg manufactured by LPBF under variable loading amplitudes R.F. Fernandes a *, J.S. Jesus a , L. Borrego a,b , J.A.M. Ferreira a , R. Branco a , J.D.M. Costa a a University of Coimbra, CEMMPRE, ARISE, Department of Mechanical Engineering P-3004 516 Coimbra, Portugal b Polytechnic University of Coimbra,, Coimbra Institute of Engineering, Department of Mechanical Engineering, Rua Pedro Nunes - Quinta da Nora,, 3030-199 Coimbra, Portugal

* Corresponding author: E-mail address: ruifvfernandes@gmail.com

2452-3216 © 2023 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 scientific committee of the ESIAM23 chairpersons

2452-3216 © 2023 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 scientific committee of the ESIAM23 chairpersons 10.1016/j.prostr.2024.01.018