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The Mechanical Properties of SME Alloys

  • C. Rodriguez
  • L. C. Brown

Abstract

The mechanical properties of SME alloys are reviewed. The conventional pseudoelastic and strain-memory effects are discussed with some recent observations being presented on the effect of strain rate and grain size. A full description is given of the stress-induced transformations in the Cu Al Ni system at various temperatures above and below Ms. In this system, two types of stress-induced martensite, β1’ and γ’ may form. It is found that the transformation from the β1’ phase to γ’ is responsible for an extended range of metastability of the γ’ phase above Af, and that the transformation from γ’ → β1’ is responsible for a high degree of pseudoelasticity below Ms. The reversible strain-memory effect is reviewed. This is the reversible dimensional change in a specimen cycled though the martensite transition temperature range. The fatigue properties of pseudoelastic metals are discussed in some detail with some recent observations in single crystals and polycrystals being presented. Finally the damping capacity of these alloys are briefly mentioned.

Keywords

Metallurgical Transaction Matrix Phase Habit Plane Martensite Formation Martensite Variant 
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

© Springer Science+Business Media New York  1975

Authors and Affiliations

  • C. Rodriguez
    • 1
  • L. C. Brown
    • 1
  1. 1.Department of MetallurgyUniversity of B. C.VancouverCanada

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