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Metallurgical Transactions A

, Volume 17, Issue 1, pp 53–63 | Cite as

Deformation and transition behavior associated with theR-phase in Ti-Ni alloys

  • S. Miyazaki
  • K. Otsuka
Transformations

Abstract

Deformation behavior associated with theR-phase (rhombohedral phase) transition and the subsequent martensitic transformation was studied systematically in Ti-Ni alloys by tensile testing over a wide temperature range covering belowM f to aboveT′ R (>Af). Since the deformation and transition characteristics showed a strong dependence on thermo-mechanical treatment and Ni-content, internal structures were examined by electron microscopy in specimens with various Ni-content and thermo-mechanical treatment. As a result precipitates and/or dislocations were revealed in the specimens in which theR-phase transition occurs. Based on the above results, the effects of thermo-mechanical treatment and Ni-content on the deformation and transition characteristics were clarified for both theR-phase transition and the martensitic transformation.

Keywords

Martensite Metallurgical Transaction Martensitic Transformation Critical Stress Transformation Strain 
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

© The Metallurgical of Society of AIME 1986

Authors and Affiliations

  • S. Miyazaki
    • 1
  • K. Otsuka
    • 1
  1. 1.Institute of Materials ScienceUniversity of TsukubaIbarakiJapan

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