PSI - Issue 83

Daniele Cortis et al. / Procedia Structural Integrity 83 (2026) 3–13

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4. Conclusions The paper investigates the mechanical behavior of the StrengthAl alloy at different operating temperatures: -100 °C, +22 °C (i.e., room temperature), +100 °C and +200 °C. Mechanical properties, such as E, ν , YS, UTS and A have been evaluated as temperature changes. Moreover, the optimal PBF-LB process parameters have been described together with the alloy microstructure and fracture surfaces of the tensile test pieces. The results highlighted the operational limits of the material in the range of ±100 °C, where it still possesses high strength and good ductility, due to the presence of Al 3 (Sc,Zr) nano particles. Metallurgical defects, like lack of fusion defects, can become critical only in the lower temperature range where they act as stress concentrators. Further developments will include the evaluation of material properties at lower temperatures (i.e., -200 °C) and the development of an elastoplastic constitutive model to be implemented within finite element simulations as temperature changes. Acknowledgements Authors would like to acknowledge the staff of the Mechanical Service of the INFN - Gran Sasso National Laboratory (LNGS) for the support during the experimental operations. Abrami, M. B., Tocci, M., Gelfi, M., Pola, A., 2022. High Temperature Mechanical Properties of AlMgScZr Alloy Produced by Laser Powder Bed Fusion. Procedia Structural Integrity 42, 838–846. ASTM E 407:2023. Standard Practice for Microetching Metals and Alloys. Bakare, F., Schieren, L., Rouxel, B., et al., 2021. The impact of L12 dispersoids and strain rate on the Portevin-Le-Chatelier effect and mechanical properties of Al–Mg alloys, Materials Science & Engineering A 811, 141040. Belelli, F, Casati, R., Adrianopoli, C., Cuccaro, F., Vedani, M., 2022. Investigation and characterization of an Al-Mg-Zr-Sc alloy with reduced Sc content for laser powder bed fusion, Journal of Alloys and Compounds 924, 166519. Bi, J., Liu, L., Wang, C., et al., 2022. Microstructure, tensile properties and heat-resistant properties of selective laser melted AlMgScZr alloy under long-term aging treatment. Materials Science and Engineering A 833, 142527. Carpenter 2021 - SCALMALLOY Datasheet. Cortis, D., Musacchio-Gonzalez, E., Tatananni, D., Mastinu, P., Orlandi, D., 2026. High-Pressure Reinforced Vessel, produced by Additive Manufacturing, to be used as a gas target for the measurement program at n_TOF - Multiple Argon Experiments (MArEX), arXiv:2601.01168 [physics.ins-det]. Cortis, D., Pilone, D., Grazzi, F. et al., 2025. Functionally graded material via L-PBF: characterisation of multi-material junction between steels (AISI 316L/16MnCr5), copper (CuCrZr) and aluminium alloys (Al-Sc/AlSi10Mg). Prog Addit Manuf 10, 2455–2472. Cortis, D., Campana, F., Orlandi, D. et al., 2022. Strength and fatigue behavior assessment of the SCALMALLOY® material to functionally adapt the performance of L-PBF components within CAE simulations., Prog Addit Manuf 8, 933–946. CUPID Collaboration, 2025. CUPID, the Cuore upgrade with particle identification, Eur. Phys. J. C 85, 737. EN ISO 6892-1:2020. Metallic materials — Tensile testing — Part 1: Method of test at room temperature. EN ISO 6892-2:2018. Metallic materials — Tensile testing — Part 2: Method of test at elevated temperature. EN ISO 6892-3:2015. Metallic materials — Tensile testing — Part 3: Method of test at low temperature. LUNA Collaboration, 2025. Detector characterization for a new 12C+12C reaction study at LUNA. J. Phys. G: Nucl. Part. Phys. 52, 105103. Metals4Printing 2025 - StrengthAl Datasheet. Ning, Y., Li Q., Sun, X., et al., 2026. Portevin–Le Chatelier effect in additively manufactured Al–Mg–Sc–Zr alloy: Effects of temperature, strain rate, and microstructure. Journal of Materials Science & Technology 267, 55–66. Tang, H., Geng, Y., Gao, C., et al., 2024. Microstructure evolution and mechanical properties of high-performance Al − Mn − Mg − Sc − Zr alloy fabricated by laser powder bed fusion. Transactions of Nonferrous Metals Society of China 34, 1413-1426. Tolley, A., Radmilovic, V., Dahmen, U., 2005. Segregation in Al3(Sc,Zr) precipitates in Al–Sc–Zr alloys. Scripta Materialia 52, 7, 621-625. UNI EN ISO 25178-6:2010. Geometrical product specifications (GPS) - Surface texture: Areal - Part 6: Classification of methods for measuring surface texture. XENON Collaboration, 2024. The XENONnT dark matter experiment, Eur. Phys. J. C 84, 784. Zhang P., Liu G., Sun J., 2022. A critical review on the Portevin-Le Chatelier effect in aluminum alloys, J Cent South Univ 29, 744–766. References