(a) Optical micrograph of the B2 + 10 M microstructure for Ni2Mn1.3 Al0.7, (b) M vs. T curve for Ni2Mn1.2Al0.8 after directly quenching from 1273 K.
(a) Indexed electron diffraction pattern from the two-step annealed Ni2Mn2− x Al x sample with x = 1.0 verifying the presence of the L21 phase (circled spots), (b) room temperature M vs. H curves for the two-step annealed Ni2Mn2− x Al x as a function of x labeled in the figure, (c) M vs. T curves for the ferromagnetic alloys, Ni2Mn2− x Al x with x = 1.0 and 0.9 at an applied of 2000 Oe.
(a) Lattice parameter and paramagnetic susceptibility for Ni2+ y (Mn1.3Al0.7)1−y/2 alloys y = 0.0–0.12 after two-step annealing as a function of the Ni concentration, (b) room temperature M vs. H curves for the two-step annealed Ni2+ y (Mn1.3Al0.7)1−y/2 alloys y = 0.0–0.12 alloys.
Structure and the room-temperature magnetic state of the Ni2Mn2− x Al x (x = 0.5–1.2) with two different annealing conditions.
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