Effects of deformation temperature and amount on the two-way shape memory effect of solutionized Ni50.8Ti49.2 alloys

I. Kaya, E. Acar, H. E. Karaca

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Temperature dependent compressive response and two-way shape memory effect (TWSME) of Ni50.8Ti49.2 (at.%) shape memory alloys were systematically investigated. It was found that solutionized Ni50.8Ti49.2 alloys could show positive and negative TWSME if they are plastically deformed in martensite and austenite (above Md), respectively. The maximum positive TWSME strain was 1.4% after martensite deformation of 8% at −90 °C and maximum negative TWSME strain of 0.5% was obtained after austenite deformation of 8% at 200 °C.

Original languageEnglish
Article number106607
JournalIntermetallics
Volume114
DOIs
StatePublished - Nov 2019

Bibliographical note

Funding Information:
This work was supported by Eskisehir Technical University BAP (Scientific research project) Department (Project No: 1706F382 and 19ADP141 ), NSF CMMI-15-38665 and Erciyes University under grant number FBA-2017-7604 .

Funding Information:
This work was supported by Eskisehir Technical University BAP (Scientific research project) Department (Project No:1706F382 and 19ADP141), NSF CMMI-15-38665 and Erciyes University under grant number FBA-2017-7604.

Publisher Copyright:
© 2019 Elsevier Ltd

Keywords

  • Mechanical testing
  • NiTi
  • Phase transformation
  • R-phase
  • Shape–memory alloys
  • Two-way shape memory effect

ASJC Scopus subject areas

  • Chemistry (all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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