20.500.12556/DiRROS-20543 Laser powder bed fusion parameters optimization for enhanced mechanical properties of EOS Co-Cr dental alloy This research explores how variations in laser powder bed fusion (LPBF) parameters—laser power (P), scanning speed (v), and base plate preheating temperature (ϑp)—affect the mechanical properties of the EOS Co-Cr SP2 dental alloy. A central composite design (CCD) was used to optimize the process parameters. Mechanical testing focused on crucial properties for dental applications, including yield strength (Rp0.2), elongation (ε), toughness (KVa), and flexural strength (Rms). Microstructural analysis was conducted using light and electron microscopy, while XRD identified microstructural phases. Statistical analysis (ANOVA, Scheffé post hoc test, α = 0.05) revealed significant effects of P, v, and ϑp on the mechanical properties. Response surface models (RSMs) were developed, and optimal parameters were determined to achieve maximum toughness and flexural strength. Maximum values were obtained with laser power above 205Wand base plate preheating at 310 ◦C. The mathematical model predicted toughness values with less than 5% deviation from experimental results, indicating high accuracy. LPBF production parameters Co-Cr dental alloy CCD mechanical properties ANOVA true false true MDPI Švica Angleški jezik Ni določen © 2024 by the authors Neznano 2024-10-18 09:16:27 2024-10-18 09:16:28 2024-10-19 03:36:58 0000-00-00 00:00:00 2024 0 0 Nasl. z nasl. zaslona; Opis vira z dne 17. 10. 2024; str. 1-15 iss. 20, [article no.] 4993 Vol. 17 Oct. 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2024-10-12 621.7 :620.1:669.2/.8 1996-1944 10.3390/ma17204993 211864579 RAZ_Viderscak_Dalibor_2024.pdf RAZ_Viderscak_Dalibor_2024.pdf 1 919D63A8145948EA5C213AAC5BBAD1E4 979e073843a2ef0ee1cb8933954442da2fb93f614f5e72cb84d7703b148a544c f33e9d1d-8d21-11ef-89f3-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=28981 https://www.mdpi.com/1996-1944/17/20/4993 1 e5dad6d8-8d20-11ef-89f3-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=28980 Inštitut za kovinske materiale in tehnologije 0 0 0