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Powder Metallurgy and Metal Ceramics

, Volume 50, Issue 7–8, pp 471–478 | Cite as

Shape memory effect in ZrIr and Zr-Ir-Co alloys

  • Yu. V. Kudryavtsev
  • O. L. Semenova
Article

The paper examines the capability of ZrIr alloys, which undergo martensitic transformation at temperatures higher than 700°C, to develop thermomechanical properties accompanying the transformation. The ZrIr sample is found to recover its shape, after being deformed, during heating at a rate of 100°C/sec to temperatures higher than the martensitic transformation temperature. The Zr-Ir-Co ternary alloy shows the same property when heated at a rate of about 1–2°C/sec. The temperature dependence of resistivity of these alloys is considered.

Keywords

shape memory effect martensitic transformation zirconium iridium cobalt 

Notes

Acknowledgements

The authors thank Professor Velikanova for the valuable advice in preparing the paper for publication.

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Copyright information

© Springer Science+Business Media, Inc. 2011

Authors and Affiliations

  1. 1.Frantsevich Institute for Problems of Materials ScienceNational Academy of Sciences of UkraineKievUkraine

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