Internal friction in a Ni-Ti-based glassy-crystal alloy

I. S. Golovin, V. Yu Zadorozhnyy, A. Yu Churyumov, D. V. Louzguine-Luzgin

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Dynamic mechanical behavior of the Ni40Cu10Ti 33Zr17 alloy containing higherature cubic and glassy phases was studied in pseudo-elastic mode at relatively small deformations. Amplitude dependent internal friction was measured by increasing the maximal strain amplitude e0 step by step. Two types of tests were applied: a simple test with increase in the amplitude of strain (loading) within each step of loading and a hysteresis loop measurement test. At least three hysteresis loops 'loading-unloading' we measured at each step, and the maximal amplitude was increased at each subsequent step. The results indicate that martensitic transformation in this composite alloy starts in a pseudo-elastic deformation mode and contributes to the internal friction observed in the studied alloy.

Original languageEnglish
Pages (from-to)633-637
Number of pages5
JournalJournal of Alloys and Compounds
Volume579
DOIs
Publication statusPublished - 2013

Keywords

  • Glassy-crystal alloy
  • Internal friction
  • Martensitic transformation

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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