TY - JOUR

T1 - Analysis of Unstable Plastic Flow in the Porous 316L Samples Manufactured with a Laser 3D Printer

AU - Kazantseva, Nataliya

AU - Koemets, Yulia

AU - Davydov, Denis

AU - Vinogradova, Nina

AU - Ezhov, Igor

N1 - This work was founded by the Russian Science Foundation (RSF), project No. 22-29-01514.

PY - 2023

Y1 - 2023

N2 - 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. © 2022 by the authors.

AB - 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. © 2022 by the authors.

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U2 - 10.3390/ma16010014

DO - 10.3390/ma16010014

M3 - Article

VL - 16

JO - Materials

JF - Materials

SN - 1996-1944

IS - 1

M1 - 14

ER -