Influence of neutron irradiation on the martensitic transformations and shape-memory effect in a TiNi alloy

R. F. Konopleva, I. V. Nazarkin, V. L. Soloveǐ, V. A. Chekanov, S. P. Belyaev, A. E. Volkov, A. I. Razov

Research output

15 Citations (Scopus)

Abstract

The paper reports measurements of the strains and electrical resistance of a TiNi shape-memory alloy under irradiation in the low-temperature helium circuit of a nuclear reactor. Irradiation of the alloy in martensitic state at 170 K revealed that the transition temperatures from cubic to rhombohedral and from rhombohedral to monoclinic phase decrease exponentially with increasing dose. No change in the shape-memory effects and transformation plasticity was observed up to a dose of 6.7×1022n/m2. Keeping the sample at 340 K without irradiation restores (increases) partially the transition temperatures. The relations observed can be assigned to a change in the degree of long-range order in the lattice caused by neutron irradiation.

Original languageEnglish
Pages (from-to)1550-1554
Number of pages5
JournalPhysics of the Solid State
Volume40
Issue number9
DOIs
Publication statusPublished - 1 Jan 1998

Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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