Issue 75

F. Milan et alii, Fracture and Structural Integrity, 75 (2026) 167-178; DOI: 10.3221/IGF-ESIS.75.12

Fatigue experimental characterisation of brazed joints in aluminium microchannel heat exchangers

Federico Milan Polytechnic Department of Engineering and Architecture, University of Udine, Via delle Scienze 206, Udine, 33100, Italy milan.federico@spes.uniud.it, http://orcid.org/0009-0004-5684-7988 Sandro Ortolano, Gian Luca Gori ThermoKey S.p.A., Via dell'Industria 1, Rivignano Teor, 33061, Italy s.ortolano@thermokey.com, g.gori@thermokey.com Denis Benasciutti, Enrico Salvati Polytechnic Department of Engineering and Architecture, University of Udine, Via delle Scienze 206, Udine, 33100, Italy

denis.benasciutti@uniud.it, https://orcid.org/0000-0001-5999-5629 enrico.salvati@uniud.it, https://orcid.org/0000-0002-2883-0538

Citation: Milan, F., Ortolano, S., Gori, G. L., Benasciutti, D., Salvati, E., Fatigue experimental characterisation of brazed joints in aluminium microchannel heat exchangers, Fracture and Structural Integrity, 75 (2026) 167-178.

Received: 17.09.2025 Accepted: 17.10.2025 Published: 24.10.2025 Issue: 01.2026

Copyright: © 2026 This is an open access article under the terms of the CC-BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

K EYWORDS . Brazed joint, Microchannel heat exchanger, Fatigue, Aluminium alloy.

I NTRODUCTION luminium alloys play a central role in modern engineering applications due to their low density, good thermal conductivity, satisfactory mechanical performance, and corrosion resistance. These attributes have led to their widespread adoption in sectors such as automotive, energy, aerospace, and electronics, where weight reduction and A

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