RT info:eu-repo/semantics/article
T1 Heat treatments of 17-4 PH SS processed by SLM to improve its strength and biocompatibility in biomedical applications
A1 García Cabezón, Ana Cristina
A1 García Hernández, Celia
A1 Castro Sánchez, María Ángeles
A1 Fernández Abia, Ana Isabel
A1 Rodríguez Méndez, María Luz
A1 Martín Pedrosa, Fernando
A2 Ingenieria de los Procesos de Fabricacion
K1 Ingeniería industrial
K1 Ingeniería química
K1 17-4 PH SS
K1 Biomaterial
K1 Corrosion
K1 Selective laser melting
K1 3305.32 Ingeniería de Estructuras
K1 3310.03 Procesos Industriales
AB [EN] This research investigates the impact of heat treatment on the microstructure, hardness, and corrosion resistance of 17-4 PH SS (stainless steel) processed by Selective Laser Manufacturing (SLM) in Phosphate Buffer Solution (PBS) and compared to its commercial wrought counterparts. The SLM process produced a segregated microstructure with significant variations in composition and phases. Post-process heat treatment resulted in a uniform and reproducible microstructure in the SLM samples with a significant improvement in corrosion resistance in the solubilised samples and a remarkable hardening in the solubilised and aged samples. Additionally, heat-treated SLM samples showed no relevant release of metallic elements to PBS electrolyte after 75 days of immersion, indicating its potential use as a biomaterial. The study concludes that the manufacturing process used to produce SS have a significant impact on its properties, moreover, post-build treatment improve microstructure providing uniformity which positively impact in the corrosion resistance. The electrochemical results also suggest that, after homogenization, the additively produced 17-4 PH SS shows a better behaviour in biological environment than the wrought 17-4 PH SS.
PB Elsevier
SN 2238-7854
LK https://hdl.handle.net/10612/19954
UL https://hdl.handle.net/10612/19954
NO Garcia-Cabezon, C., García Hernández, C., Castro-Sastre, M.A., Fernandez-Abia, A.I., Rodriguez-Mendez, M.L. and Martin-Pedrosa, F.(2023). Heat treatments of 17-4 PH SS processed by SLM to improve its strength and biocompatibility in biomedical applications. Journal of Materials Research and Technology, 26, 3524-3543. https://doi.org/10.1016/J.JMRT.2023.08.104
DS BULERIA. Repositorio Institucional de la Universidad de León
RD 18-may-2024