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Exothermal and endothermal effects in porous titanium-nickel alloys

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Abstract

It was found that the phase transitions in porous titanium-nickel alloys are characterized by an extended temperature interval of heat release (on cooling) and heat absorption (on heating). The total heat released and absorbed in porous titanium-nickel alloys markedly exceeds that in the analogous cast alloys. The maximum exothermal and endothermal effects are manifested in the alloys with fine pores. The extended temperature interval and increased amount of released and absorbed heat during the phase transitions in porous TiNi alloys, as compared to the analogous cast alloys, is determined by the degree of porosity, the character of inhomogeneity of the porous alloy structure, and the width of the martensite transformation interval.

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Authors and Affiliations

  1. Institute of Medical Materials and Shape-Memory Implants, Siberian Physicotechnical Institute, Tomsk State University, Tomsk, Russia

    V. N. Khodorenko, V. É. Gyunter, A. N. Monogenov & Yu. F. Yasenchuk

Authors
  1. V. N. Khodorenko
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  2. V. É. Gyunter
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  3. A. N. Monogenov
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  4. Yu. F. Yasenchuk
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Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 27, No. 22, 2001, pp. 80–85.

Original Russian Text Copyright © 2001 by Khodorenko, Gyunter, Monogenov, Yasenchuk.

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Khodorenko, V.N., Gyunter, V.É., Monogenov, A.N. et al. Exothermal and endothermal effects in porous titanium-nickel alloys. Tech. Phys. Lett. 27, 970–972 (2001). https://doi.org/10.1134/1.1424409

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  • DOI: https://doi.org/10.1134/1.1424409

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