Microstructure, Plasticity and Ductility of a TNM+ Alloy Densified by Spark Plasma Sintering

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Microstructure, Plasticity and Ductility of a TNM+ Alloy Densified by Spark Plasma Sintering. / Musi, Michael; Deshayes, Christophe; Molénat, Guy et al.
in: Metals : open access journal , Jahrgang 12.2022, Nr. 11, 1915, 08.11.2022.

Publikationen: Beitrag in FachzeitschriftArtikelForschung(peer-reviewed)

Harvard

Musi, M, Deshayes, C, Molénat, G, Toualbi, L, Galy, B, Spörk-Erdely, P, Hantcherli, M, Monchoux, J-P, Thomas, M, Clemens, H & Couret, A 2022, 'Microstructure, Plasticity and Ductility of a TNM+ Alloy Densified by Spark Plasma Sintering', Metals : open access journal , Jg. 12.2022, Nr. 11, 1915. https://doi.org/10.3390/met12111915

APA

Musi, M., Deshayes, C., Molénat, G., Toualbi, L., Galy, B., Spörk-Erdely, P., Hantcherli, M., Monchoux, J.-P., Thomas, M., Clemens, H., & Couret, A. (2022). Microstructure, Plasticity and Ductility of a TNM+ Alloy Densified by Spark Plasma Sintering. Metals : open access journal , 12.2022(11), Artikel 1915. https://doi.org/10.3390/met12111915

Vancouver

Musi M, Deshayes C, Molénat G, Toualbi L, Galy B, Spörk-Erdely P et al. Microstructure, Plasticity and Ductility of a TNM+ Alloy Densified by Spark Plasma Sintering. Metals : open access journal . 2022 Nov 8;12.2022(11):1915. doi: 10.3390/met12111915

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@article{c280c3bd06684b3d9a64b8e7e49c93a1,
title = "Microstructure, Plasticity and Ductility of a TNM+ Alloy Densified by Spark Plasma Sintering",
abstract = "This work presents a study of the microstructure and mechanical properties of a TNM+ alloy (Ti-43.5Al-4Nb-1Mo-0.1B-0.3C-0.3Si, in at.%) densified by Spark Plasma Sintering (SPS), in comparison to the as-SPSed TNM alloy, which contains neither carbon nor silicon. Tensile tests at room temperature and 800 °C, as well as creep tests at 800 °C and 200 MPa, were performed. The microstructures and the fracture surfaces of deformed samples were studied by scanning and transmission electron microscopies, as well as by X-ray diffraction. The deformation mechanisms were investigated by means of in situ straining experiments and post-mortem analyses of deformed samples, both performed by transmission electron microscopy. Contrary to the TNM alloy, the as-SPSed microstructure of the TNM+ alloy does not contain β/βo phase due to the incorporation of carbon. At room temperature, the TNM+ alloy exhibits a yield stress of 520 MPa but a poor ductility of less than 0.1% of plastic strain. The incorporation of carbon and silicon leads to an increase in the creep resistance of the alloy at 800 °C. Despite the fact that iron inclusions are responsible for the premature failure of some samples during tensile tests, the TNM+ alloy is found to be able to deform plastically at room temperature by the glide of ordinary dislocations and by twinning.",
author = "Michael Musi and Christophe Deshayes and Guy Mol{\'e}nat and Louise Toualbi and Benjamin Galy and Petra Sp{\"o}rk-Erdely and Muriel Hantcherli and Jean-Philippe Monchoux and Marc Thomas and Helmut Clemens and Alain Couret",
year = "2022",
month = nov,
day = "8",
doi = "10.3390/met12111915",
language = "English",
volume = "12.2022",
journal = "Metals : open access journal ",
issn = "2075-4701",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "11",

}

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TY - JOUR

T1 - Microstructure, Plasticity and Ductility of a TNM+ Alloy Densified by Spark Plasma Sintering

AU - Musi, Michael

AU - Deshayes, Christophe

AU - Molénat, Guy

AU - Toualbi, Louise

AU - Galy, Benjamin

AU - Spörk-Erdely, Petra

AU - Hantcherli, Muriel

AU - Monchoux, Jean-Philippe

AU - Thomas, Marc

AU - Clemens, Helmut

AU - Couret, Alain

PY - 2022/11/8

Y1 - 2022/11/8

N2 - This work presents a study of the microstructure and mechanical properties of a TNM+ alloy (Ti-43.5Al-4Nb-1Mo-0.1B-0.3C-0.3Si, in at.%) densified by Spark Plasma Sintering (SPS), in comparison to the as-SPSed TNM alloy, which contains neither carbon nor silicon. Tensile tests at room temperature and 800 °C, as well as creep tests at 800 °C and 200 MPa, were performed. The microstructures and the fracture surfaces of deformed samples were studied by scanning and transmission electron microscopies, as well as by X-ray diffraction. The deformation mechanisms were investigated by means of in situ straining experiments and post-mortem analyses of deformed samples, both performed by transmission electron microscopy. Contrary to the TNM alloy, the as-SPSed microstructure of the TNM+ alloy does not contain β/βo phase due to the incorporation of carbon. At room temperature, the TNM+ alloy exhibits a yield stress of 520 MPa but a poor ductility of less than 0.1% of plastic strain. The incorporation of carbon and silicon leads to an increase in the creep resistance of the alloy at 800 °C. Despite the fact that iron inclusions are responsible for the premature failure of some samples during tensile tests, the TNM+ alloy is found to be able to deform plastically at room temperature by the glide of ordinary dislocations and by twinning.

AB - This work presents a study of the microstructure and mechanical properties of a TNM+ alloy (Ti-43.5Al-4Nb-1Mo-0.1B-0.3C-0.3Si, in at.%) densified by Spark Plasma Sintering (SPS), in comparison to the as-SPSed TNM alloy, which contains neither carbon nor silicon. Tensile tests at room temperature and 800 °C, as well as creep tests at 800 °C and 200 MPa, were performed. The microstructures and the fracture surfaces of deformed samples were studied by scanning and transmission electron microscopies, as well as by X-ray diffraction. The deformation mechanisms were investigated by means of in situ straining experiments and post-mortem analyses of deformed samples, both performed by transmission electron microscopy. Contrary to the TNM alloy, the as-SPSed microstructure of the TNM+ alloy does not contain β/βo phase due to the incorporation of carbon. At room temperature, the TNM+ alloy exhibits a yield stress of 520 MPa but a poor ductility of less than 0.1% of plastic strain. The incorporation of carbon and silicon leads to an increase in the creep resistance of the alloy at 800 °C. Despite the fact that iron inclusions are responsible for the premature failure of some samples during tensile tests, the TNM+ alloy is found to be able to deform plastically at room temperature by the glide of ordinary dislocations and by twinning.

U2 - 10.3390/met12111915

DO - 10.3390/met12111915

M3 - Article

VL - 12.2022

JO - Metals : open access journal

JF - Metals : open access journal

SN - 2075-4701

IS - 11

M1 - 1915

ER -