Analysis of Unstable Plastic Flow in the Porous 316L Samples Manufactured with a Laser 3D Printer

The study of unstable plastic flow in porous steel 316L samples after compression deformation at room temperature with different strain rates was carried out. The samples were obtained from ASTM F3184 medical grade steel powder by digital metallurgy using a Renishaw AM 400 laser 3D printer. Serratio...

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Detalles Bibliográficos
Autores principales: Kazantseva, Nataliya, Koemets, Yulia, Davydov, Denis, Vinogradova, Nina, Ezhov, Igor
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9820954/
https://www.ncbi.nlm.nih.gov/pubmed/36614352
http://dx.doi.org/10.3390/ma16010014
Descripción
Sumario:The study of unstable plastic flow in porous steel 316L samples after compression deformation at room temperature with different strain rates was carried out. The samples were obtained from ASTM F3184 medical grade steel powder by digital metallurgy using a Renishaw AM 400 laser 3D printer. Serrations on the stress-strain curves and strain localization bends were found, which were associated with the Portevin-Le Chatelier effect and testified instability of the plastic flow of the material under the deformation process. Deformation twins were observed in the structure of deformed samples.

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