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Experimental Mechanics

, Volume 58, Issue 8, pp 1305–1310 | Cite as

The Influence of Long-Term Storage on the Functional Properties of Shape Memory Alloys

  • E. Ostropiko
  • A. Razov
Article
  • 90 Downloads

Abstract

The influence of long-term storage of TiNi-based and CuZnAl alloys on their functional properties was investigated. It was established that during 30 years’ storage of TiNiFe thermomechanical couplings, the stresses in them practically did not decrease. Couplings with CuZnAl alloy sleeves during storage weakened slightly. The one-way shape memory effect in equiatomic TiNi alloy did not change after 25 years. It was found that the value of two-way shape memory effect in the first cycle after storage at room temperature in martensitic state for more than 15 years was higher than before storage.

Keywords

Shape memory alloys Storage time Two-way shape memory Shape memory effect Constrained stresses Strain rate 

Notes

Acknowledgements

The authors are grateful to the Russian Foundation for Basic Research for supporting this research (grant no. 16-08-00135). A part of the scientific research was performed at the Centre for Thermogravimetric and Calorimetric Research of the Research Park of St. Petersburg State University.

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Copyright information

© Society for Experimental Mechanics 2018

Authors and Affiliations

  1. 1.St. Petersburg State UniversitySt. PetersburgRussia

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