Peculiarities of residual strain accumulation during thermal cycling of TiNi alloy

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Abstract

Strain variation on thermal cycling of the TiNi alloy under a constant stress of 50 MPa through the temperature range of complete as well as incomplete forward martensitic transformation was studied. The thermal cycling of the alloy through the temperature range of incomplete forward martensitic transformation was carried out to realize 25%, 50% or 75% of temperature range of forward phase transition. The thermal cycling of the TiNi alloy through the temperature range of the complete forward martensitic transformation resulted in observation of “training effect” (an increase in values of transformation plasticity and shape memory effects strain) and accumulation in residual plastic strain. It was shown that observation of “training effect” as well as accumulation of residual strain depended on the completeness of the forward martensitic transformation. As higher the fraction of temperature range of forward martensitic transformations on thermal cycling as stronger variation in values of shape memory effects a
Original languageEnglish
Pages (from-to)37-42
JournalJournal of Alloys and Compounds
Volume542
StatePublished - 2012

Keywords

  • Shape memory effect
  • Thermal cycling
  • Irreversible strain accumulation
  • Training effect

Cite this

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title = "Peculiarities of residual strain accumulation during thermal cycling of TiNi alloy",
abstract = "Strain variation on thermal cycling of the TiNi alloy under a constant stress of 50 MPa through the temperature range of complete as well as incomplete forward martensitic transformation was studied. The thermal cycling of the alloy through the temperature range of incomplete forward martensitic transformation was carried out to realize 25{\%}, 50{\%} or 75{\%} of temperature range of forward phase transition. The thermal cycling of the TiNi alloy through the temperature range of the complete forward martensitic transformation resulted in observation of “training effect” (an increase in values of transformation plasticity and shape memory effects strain) and accumulation in residual plastic strain. It was shown that observation of “training effect” as well as accumulation of residual strain depended on the completeness of the forward martensitic transformation. As higher the fraction of temperature range of forward martensitic transformations on thermal cycling as stronger variation in values of shape memory effects a",
keywords = "Shape memory effect, Thermal cycling, Irreversible strain accumulation, Training effect",
author = "S. Belyaev and N. Resnina and A. Sibirev",
year = "2012",
language = "English",
volume = "542",
pages = "37--42",
journal = "Journal of Alloys and Compounds",
issn = "0925-8388",
publisher = "Elsevier",

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TY - JOUR

T1 - Peculiarities of residual strain accumulation during thermal cycling of TiNi alloy

AU - Belyaev, S.

AU - Resnina, N.

AU - Sibirev, A.

PY - 2012

Y1 - 2012

N2 - Strain variation on thermal cycling of the TiNi alloy under a constant stress of 50 MPa through the temperature range of complete as well as incomplete forward martensitic transformation was studied. The thermal cycling of the alloy through the temperature range of incomplete forward martensitic transformation was carried out to realize 25%, 50% or 75% of temperature range of forward phase transition. The thermal cycling of the TiNi alloy through the temperature range of the complete forward martensitic transformation resulted in observation of “training effect” (an increase in values of transformation plasticity and shape memory effects strain) and accumulation in residual plastic strain. It was shown that observation of “training effect” as well as accumulation of residual strain depended on the completeness of the forward martensitic transformation. As higher the fraction of temperature range of forward martensitic transformations on thermal cycling as stronger variation in values of shape memory effects a

AB - Strain variation on thermal cycling of the TiNi alloy under a constant stress of 50 MPa through the temperature range of complete as well as incomplete forward martensitic transformation was studied. The thermal cycling of the alloy through the temperature range of incomplete forward martensitic transformation was carried out to realize 25%, 50% or 75% of temperature range of forward phase transition. The thermal cycling of the TiNi alloy through the temperature range of the complete forward martensitic transformation resulted in observation of “training effect” (an increase in values of transformation plasticity and shape memory effects strain) and accumulation in residual plastic strain. It was shown that observation of “training effect” as well as accumulation of residual strain depended on the completeness of the forward martensitic transformation. As higher the fraction of temperature range of forward martensitic transformations on thermal cycling as stronger variation in values of shape memory effects a

KW - Shape memory effect

KW - Thermal cycling

KW - Irreversible strain accumulation

KW - Training effect

M3 - Article

VL - 542

SP - 37

EP - 42

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

ER -