Study of Structural, Compression, and Soft Magnetic Properties of Fe65Ni28Mn7 Alloy Prepared by Arc Melting, Mechanical Alloying, and Spark Plasma Sintering - Mines Paris Accéder directement au contenu
Article Dans Une Revue Materials Année : 2023

Study of Structural, Compression, and Soft Magnetic Properties of Fe65Ni28Mn7 Alloy Prepared by Arc Melting, Mechanical Alloying, and Spark Plasma Sintering

Kaouther Zaara
  • Fonction : Auteur
  • PersonId : 1233360
Lluisa Escoda
  • Fonction : Auteur
  • PersonId : 1233362
Joan Saurina
Joan-Josep Suñol

Résumé

Soft magnetic Fe 65 Ni 28 Mn 7 (at. %) alloy was successfully synthesized by mechanical alloying and spark plasma sintering (SPS) and, in parallel, the same composition was prepared by arc melting (AM) for comparison. Several SPS conditions were tested. X-ray diffraction and scanning electron microscopy were used to investigate the structure, phase composition, and morphology of the samples. It was found that mechanical alloying produced BCC and FCC supersaturated solid solution after 130 h of milling, with a fine microstructure (i.e., crystallite size of 10 nm). Spark plasma sintering performed at 750 • C and 1000 • C under two pressures of 50 MPa and 75 MPa revealed stable FCC phases. A single FCC phase was observed after the arc melting synthesis. The magnetic properties of milled powders and solids obtained by AM and SPS were investigated. The specimen consolidated by SPS at 1000 • C under the pressure of 50 MPa exhibits soft magnetic behavior (coercivity 0.07 Oe), whereas the mechanically alloyed sample revealed hard magnetic behavior. The specimen consolidated at 750 • C under a pressure of 75 MPa showed a higher compressive strength of 1700 MPa and a Vickers hardness of 425 ± 18 HV. As a result, sintering at 750 • C/75 MPa can be utilized to enhance the mechanical properties, while those sintered at 1000 • C/50 MPa increase magnetic softness.
Fichier principal
Vignette du fichier
materials-Study of Structural Compression and Soft Magnetic Properties Fe65Ni28Mn7 Alloy.pdf (5.68 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-04334650 , version 1 (11-12-2023)

Identifiants

Citer

Kaouther Zaara, Virgil Optasanu, Sophie Le Gallet, Lluisa Escoda, Joan Saurina, et al.. Study of Structural, Compression, and Soft Magnetic Properties of Fe65Ni28Mn7 Alloy Prepared by Arc Melting, Mechanical Alloying, and Spark Plasma Sintering. Materials, 2023, 16, ⟨10.3390/ma16227244⟩. ⟨hal-04334650⟩
11 Consultations
30 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More