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Effect of oxidation on transformation and deformation behavior in Ni-Ti alloy

  • K. S. Kim
  • K. K. Jee
  • Y. B. Kim
  • W. Y. Jang
  • S. H. Han
Article

Abstract.

Effect of oxidation on transformation and deformation behavior was investigated in Ni-Ti alloy by comparing the as-oxidized specimen and the polished one. Ti's preferable reaction with oxygen results in the compounds such as Ni3Ti and Ni4Ti3, and the Ni-rich region between matrix and oxide. Martensitic transformation did not take place in the Ni-rich region due to the high Ni content while R phase transformation temperature decreased significantly. Oxidation deteriorated the superelasticity due to the formation of the compound as well as the Ni-rich region in which slip deformation occurs instead of induction of martensite.

Keywords

Martensite Martensitic Transformation Shape Memory Alloy European Physical Journal Special Topic Aged Specimen 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2008

Authors and Affiliations

  • K. S. Kim
    • 1
    • 2
  • K. K. Jee
    • 1
  • Y. B. Kim
    • 1
  • W. Y. Jang
    • 3
  • S. H. Han
    • 1
  1. 1.Division of Materials Science and EngineeringKorea Institute of Science and TechnologySeoulKorea
  2. 2.School of Materials Science and Engineering, Hongik UniversityJochiwonKorea
  3. 3.Division of Metallurgical and Materials EngineeringChosun UniversityGwangjuKorea

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