Thermal expansion of [Ni.sub.2.08][Mn.sub.0.96][Ga.sub.0.96] alloy

Thermal expansion of [Ni.sub.2.08][Mn.sub.0.96][Ga.sub.0.96] alloy

The temperature dependence of the thermal expansion of polycrystalline [Ni.sub.2.08][Mn.sub.0.96][Ga.sub.0.96] alloy samples is studied in the as-cast state and after homogenizing annealing. A sample in which twins are mainly oriented normal to the sample length shortens jumpwise during the martensi...

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Veröffentlicht in:Technical physics 2011-03, Vol.56 (3), p.423
Hauptverfasser: Musabirov, I.I, Mulyukov, Kh. Ya, Koledov, V.V, Shavrov, V.G
Format: Artikel
Sprache:eng
Schlagworte:
Alloys
Magnetic fields
Specialty metals industry
Toy industry
Twins
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Zusammenfassung:The temperature dependence of the thermal expansion of polycrystalline [Ni.sub.2.08][Mn.sub.0.96][Ga.sub.0.96] alloy samples is studied in the as-cast state and after homogenizing annealing. A sample in which twins are mainly oriented normal to the sample length shortens jumpwise during the martensitic transformation. A sample in which twins are parallel to its length elongates jumpwise. After annealing, both samples do not exhibit a jumplike change in length during the phase transformation. When an annealed sample is cooled in a magnetic field, its length again changes jumpwise in the phase transformation range. DOI: 10.1134/S1063784211030145
ISSN:1063-7842
DOI:10.1134/S1063784211030145