Kinetics of the reverse martensitic transformation in shape memory alloys under an abrupt heating pulse

Shahaf Vollach, Haim Shlagman, Doron Shilo

Research output: Contribution to journalArticlepeer-review

Abstract

The kinetics of the reverse martensitic transformation in shape memory alloy wires is studied under conditions at which it is restricted neither by the rate of heat transfer nor by mechanical inertia. Two characteristic times for the transformation are identified and estimated. A model provides a universal expression that fits all experimental measurements performed at different temperatures. The kinetic law predicted by the model indicates that interface velocities are governed by viscous resistance and are thus much slower than the shear wave speed, even under very large driving force values.

Original languageEnglish
Pages (from-to)76-79
Number of pages4
JournalScripta Materialia
Volume135
DOIs
StatePublished - 1 Jul 2017

Keywords

  • Kinetics of phase transformation
  • Rapid heating
  • Shape memory alloys

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • General Materials Science

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