Title :
Structural and Magnetic Characterization of Fe–Mn–Al–Ni Pseudo-Heusler Alloy
Author :
Mino, J. ; Komanicky, V. ; Durisin, M. ; Saksl, K. ; Kovac, J. ; Varga, R.
Author_Institution :
Fac. of Sci., Univ. Pavla Jozefa rafarika v Kosiciach, Kosice, Slovakia
Abstract :
In this paper, the production and structural, superelastic, thermoelastic, and magnetic properties of melt-spun Fe43.5Mn34Al15Ni7.5 alloy have been investigated with the aim to employ it for contactless strain measurements. Structural properties were observed by scanning electron microscope and X-ray diffraction, which shows the existence of two phases (fcc and bcc). Magnetic properties were studied by vibrating sample magnetometer and LCR-Bridge. Superelasticity was investigated by straining a ribbon. Measured superelastic strain at room temperature was ~0.5%. Within that range we achieved 12% change of permeability that arises from the structural transition between two recognized phases. It proves that Fe43.5Mn34Al15Ni7.5 superelastic alloy is a promising potential contactless sensor of strain.
Keywords :
X-ray diffraction; aluminium alloys; crystal structure; iron alloys; magnetic permeability; magnetic transitions; manganese alloys; nickel alloys; scanning electron microscopy; solid-state phase transformations; strain sensors; thermoelasticity; Fe43.5Mn34Al15Ni7.5; LCR-bridge; X-ray diffraction; bcc phase; contactless strain measurement; fcc phase; magnetic permeability; magnetic properties; melt-spun alloy; potential contactless strain sensor; pseudo-Heusler alloy; scanning electron microscopy; structural properties; structural transition; superelastic strain; temperature 293 K to 298 K; thermoelastic properties; vibrating sample magnetometer; Magnetic hysteresis; Magnetomechanical effects; Metals; Permeability; Strain; Stress; Temperature measurement; Contactless sensor; Heusler alloy; magnetic material; superelasticity;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2014.2348324
