View in EDS

R-phase influence on different two-way shape memory training methods in NiTi shape memory alloys

Saved in:
Bibliographic Details
Title: R-phase influence on different two-way shape memory training methods in NiTi shape memory alloys
Authors: Urbina, C. cristina.urbina@urv.cat, De la Flor, S.1, Ferrando, F.1
Source: Journal of Alloys & Compounds. Feb2010, Vol. 490 Issue 1/2, p499-507. 9p.
Subjects: Shape memory alloys, Phase transitions, Deformations (Mechanics), Martensite, Strains & stresses (Mechanics), Temperature effect, Thermal analysis
Abstract: Abstract: This paper studies how the R-phase developed by thermal cycling at zero stress influences two different training procedures for developing the two-way shape memory effect (TWSME) in NiTi shape memory alloys (SMAs). The two training procedures are thermal cycling under constant load and isothermal tensile deformation under martensite state. This paper studies how R-phase developed by thermal cycling at zero stress influences these training procedures and their training parameters, the two-way memory strain obtained and the transformation temperatures. The results show first, that the presence of the R-phase did not prevent substantial two-way memory strain from being obtained in any instance of training and thermal treatment; and second, that thermal cycling at zero stress prior to training has a considerable impact depending on the training method used. Finally, to obtain the best results (that is, a substantial two-way memory strain together with a minimum of final plastic strain and easy TWSME activation temperatures), the NiTi wire should be thermally cycled at zero stress prior to training until the R-phase is totally developed and trained by thermal cycling under constant load. [Copyright &y& Elsevier]
Copyright of Journal of Alloys & Compounds is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 47950298
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: R-phase influence on different two-way shape memory training methods in NiTi shape memory alloys
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Urbina%2C+C%2E%22">Urbina, C.</searchLink><i> cristina.urbina@urv.cat</i><br /><searchLink fieldCode="AR" term="%22De+la+Flor%2C+S%2E%22">De la Flor, S.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Ferrando%2C+F%2E%22">Ferrando, F.</searchLink><relatesTo>1</relatesTo>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Journal+of+Alloys+%26+Compounds%22">Journal of Alloys & Compounds</searchLink>. Feb2010, Vol. 490 Issue 1/2, p499-507. 9p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Shape+memory+alloys%22">Shape memory alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Phase+transitions%22">Phase transitions</searchLink><br /><searchLink fieldCode="DE" term="%22Deformations+%28Mechanics%29%22">Deformations (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Martensite%22">Martensite</searchLink><br /><searchLink fieldCode="DE" term="%22Strains+%26+stresses+%28Mechanics%29%22">Strains & stresses (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature+effect%22">Temperature effect</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+analysis%22">Thermal analysis</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Abstract: This paper studies how the R-phase developed by thermal cycling at zero stress influences two different training procedures for developing the two-way shape memory effect (TWSME) in NiTi shape memory alloys (SMAs). The two training procedures are thermal cycling under constant load and isothermal tensile deformation under martensite state. This paper studies how R-phase developed by thermal cycling at zero stress influences these training procedures and their training parameters, the two-way memory strain obtained and the transformation temperatures. The results show first, that the presence of the R-phase did not prevent substantial two-way memory strain from being obtained in any instance of training and thermal treatment; and second, that thermal cycling at zero stress prior to training has a considerable impact depending on the training method used. Finally, to obtain the best results (that is, a substantial two-way memory strain together with a minimum of final plastic strain and easy TWSME activation temperatures), the NiTi wire should be thermally cycled at zero stress prior to training until the R-phase is totally developed and trained by thermal cycling under constant load. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Alloys & Compounds is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=47950298
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.jallcom.2009.10.067
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 9
        StartPage: 499
    Subjects:
      – SubjectFull: Shape memory alloys
        Type: general
      – SubjectFull: Phase transitions
        Type: general
      – SubjectFull: Deformations (Mechanics)
        Type: general
      – SubjectFull: Martensite
        Type: general
      – SubjectFull: Strains & stresses (Mechanics)
        Type: general
      – SubjectFull: Temperature effect
        Type: general
      – SubjectFull: Thermal analysis
        Type: general
    Titles:
      – TitleFull: R-phase influence on different two-way shape memory training methods in NiTi shape memory alloys
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Urbina, C.
      – PersonEntity:
          Name:
            NameFull: De la Flor, S.
      – PersonEntity:
          Name:
            NameFull: Ferrando, F.
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 04
              M: 02
              Text: Feb2010
              Type: published
              Y: 2010
          Identifiers:
            – Type: issn-print
              Value: 09258388
          Numbering:
            – Type: volume
              Value: 490
            – Type: issue
              Value: 1/2
          Titles:
            – TitleFull: Journal of Alloys & Compounds
              Type: main
ResultId 1