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Microstructures and magnetostriction of two-phase Fe66-Pd30-Ni4 high-temperature ferromagnetic shape memory alloys
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10.1063/1.3540690
/content/aip/journal/jap/109/7/10.1063/1.3540690
http://aip.metastore.ingenta.com/content/aip/journal/jap/109/7/10.1063/1.3540690
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Figures

Image of FIG. 1.
FIG. 1.

(Color online) The linear magnetostriction (× 10−6) at RT in parallel (λ||) and normal (λ) applied field (H (kOe)) to sample’s longitudeofFe66-Pd30-Ni4 (at.%) alloys for the as received specimen, sample homogenized at 1050 °C for 70 hours, and sample homogenized without strain-forging and then annealed at 950 °C for 6 hours and quenched in ice brine.

Image of FIG. 2.
FIG. 2.

(Color online) The linear magnetostriction ( × 10−6) at RT in parallel and normal (λ) applied field (H (kOe)) to sample’s longitude of Fe66-Pd30-Ni4 alloys for the strain-forged 33% reduction specimens ST and recrystallization annealed, and then aged at 400 °C, 500 °C, 600 °C, and 700 °C for 100 hours, respectively.

Image of FIG. 3.
FIG. 3.

SEM micrographs taken from: (a) the alloys homogenized and strain-forged to a 33% reduction in thickness, then ST and annealed recrystallization at 950 °C for 3 hours, and the strain-forged sample ST then aged at (b) 400 °C for 100 hours, (c) 500 °C for 100 hours, and (d) 700 °C for 100 hours, respectively.

Image of FIG. 4.
FIG. 4.

XRD patterns of the Fe66-Pd30-Ni4 alloys: (a) homogenized and strain-forged to a 33% reduction, then ST at 950 °C for 3 h, and sample ST then aged at (b) 400 °C for 100 h, (c) 500 °C for 100 h. (41.66° denotes diffraction angle 2θ = 41.66°).

Image of FIG. 5.
FIG. 5.

TEM micrographs of the Fe66-Pd30-Ni4 alloys strain-forged to a 33% reduction in thickness, ST and recrystallization annealed at 950 °C for 3 hours: (a) selected area diffraction pattern (SADP) of zone axis [310]L10//[561]L1m (hkl denotes tetragonal L10 reflection; and hkl denotes L1m monoclinic structure), (b) BF image, (c)DF image of , and (d) DF image of .

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/content/aip/journal/jap/109/7/10.1063/1.3540690
2011-03-24
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Microstructures and magnetostriction of two-phase Fe66-Pd30-Ni4 high-temperature ferromagnetic shape memory alloys
http://aip.metastore.ingenta.com/content/aip/journal/jap/109/7/10.1063/1.3540690
10.1063/1.3540690
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