Ultrafine-Grained Two-Phase High-Entropy Alloy Microstructures Obtained via Recrystallization: Mechanical Properties

Autor: Ivan Guillot, Muriel Tyrman, Loic Perrière, Jean-Philippe P. Couzinié, Lola Lilensten, Frédéric Prima, Guy Dirras

Publikováno v: Frontiers in Materials, Vol 7 (2020)

A metallurgical methodology has been set up in order to design alloys with improved mechanical properties such as strength–ductility trade-off, via improved strain hardening. To this end, a multi-concept approach including high-entropy alloys (HEAs

Externí odkaz: https://doaj.org/article/29fc3cf07d7341c8bb0543fbee4e6304

Temperature dependence of coercivity and magnetic relaxation in a Mn–Al–C permanent magnet

Autor: Ivan Guillot, Muriel Tyrman, Frederic Mazaleyrat, Loïc Perrière, Victor H. Etgens, Martino Lobue, Alexandre Pasko, Alexis Pecheux

Publikováno v: IEEE Transactions on Magnetics
IEEE Transactions on Magnetics, Institute of Electrical and Electronics Engineers, 2021, ⟨10.1109/TMAG.2020.3014741⟩

International audience; The kinetics of magnetization reversal in a rare-earth-free Mn-Al-C permanent magnet is reported. The L10-phase material was prepared using a combination of the melt spinning and spark plasma sintering techniques and character

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::776857633688328e30163f91d430a7e7
https://hal.archives-ouvertes.fr/hal-02937604

Ferromagnetic L10 Phase Formation in the Mn–Al–C Alloys Induced by High-Pressure Spark Plasma Sintering

Autor: Loïc Perrière, Ivan Guillot, Simon Quetel-Weben, Muriel Tyrman, Alexandre Pasko, Frederic Mazaleyrat, Victor H. Etgens

Publikováno v: IEEE Transactions on Magnetics
IEEE Transactions on Magnetics, Institute of Electrical and Electronics Engineers, 2017, 53, pp.2101505. ⟨10.1109/TMAG.2017.2732500⟩
IEEE Transactions on Magnetics, 2017, 53, pp.2101505. ⟨10.1109/TMAG.2017.2732500⟩

Structural and magnetic characterization of Mn–Al–C permanent magnets obtained by spark plasma sintering (SPS) is reported. The transformation from the parent $\epsilon $ -phase to the ferromagnetic $\tau $ -phase occurs simultaneously with the p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a6bb8d75d15081c6f444bd5bc568eb02
https://doi.org/10.1109/tmag.2017.2732500

Anisotropy of the ferromagnetic L10 phase in the Mn-Al-C alloys induced by high-pressure spark plasma sintering

Autor: Frederic Mazaleyrat, Muriel Tyrman, Ivan Guillot, Smail Ahmim, Victor H. Etgens, Simon Quetel-Weben, Alexandre Pasko, Loïc Perrière

Publikováno v: AIP Advances, Vol 8, Iss 5, Pp 056217-056217-6 (2018)
AIP Advances
AIP Advances, American Institute of Physics-AIP Publishing LLC, 2018, 8 (5), pp.056217. ⟨10.1063/1.5007241⟩
62nd Annual Conference on Magnetism and Magnetic Materials (MMM 2017)
62nd Annual Conference on Magnetism and Magnetic Materials (MMM 2017), Nov 2017, Pittsburgh, United States
AIP Advances, 2018, 8 (5), pp.056217. ⟨10.1063/1.5007241⟩

International audience; The metastable τ-phase of MnAl equi-atomic compound belongs to a family of ferromagnetic alloys with L1 0 crystal structure. Stabilization of the phase by adding 2 at. % using manganese carbide (Mn 23 C 6) enhances the magnet

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a17a1f9882c9875d38852d3efd8cc132
https://doaj.org/article/3c1c9cd01aac47b4bdf953c98756e2bd