Superelastic response and damping capacity of ultrahigh-strength [1 1 1]-oriented NiTiHfPd single crystals

H. E. Karaca, E. Acar, B. Basaran, R. D. Noebe, Y. I. Chumlyakov

Research output: Contribution to journalArticlepeer-review

46 Scopus citations

Abstract

The superelastic behavior of an NiTiHfPd single-crystal shape memory alloy in compression along the [1 1 1] orientation was investigated as a function of temperature. In the range of -30 to 70 °C, a perfect superelastic loop with 4.2% transformation strain was attained. In addition, this material exhibited an ultrahigh yield strength of more than 2500 MPa and an exceptional damping capacity of 44 J cm -3.

Original languageEnglish
Pages (from-to)447-450
Number of pages4
JournalScripta Materialia
Volume67
Issue number5
DOIs
StatePublished - Sep 2012

Bibliographical note

Funding Information:
This work was supported in part by the NASA Fundamental Aeronautics Program, Supersonics Project and the NASA EPSCOR program under Grant nos. NNX11AQ31A , KY EPSCoR RIDG program under Grant no. 3049024332 and RFBR Project with Grant no. 10-03-00154a .

Keywords

  • Compression test
  • Damping
  • High-strength shape memory alloys
  • Phase transformation
  • Shape memory alloys (SMAs)

ASJC Scopus subject areas

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

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