Superelastic response and damping capacity of ultrahigh-strength [111]-oriented NiTiHfPd single crystals

Karaca H., ACAR E., Basaran B., Noebe R., Chumlyakov Y.

SCRIPTA MATERIALIA, cilt.67, sa.5, ss.447-450, 2012 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 67 Sayı: 5
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.scriptamat.2012.05.044
  • Dergi Adı: SCRIPTA MATERIALIA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.447-450
  • Anahtar Kelimeler: Shape memory alloys (SMAs), Phase transformation, Damping, Compression test, High-strength shape memory alloys, SHAPE-MEMORY ALLOYS, MARTENSITIC-TRANSFORMATION, COMPRESSIVE RESPONSE, CYCLIC DEFORMATION, BEHAVIOR, PSEUDOELASTICITY, HYSTERESIS
  • Erciyes Üniversitesi Adresli: Hayır

Özet

The superelastic behavior of an NiTiHfPd single-crystal shape memory alloy in compression along the [111] orientation was investigated as a function of temperature. In the range of -30 to 70 degrees 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). (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.