TiAu and TiPt high temperature shape memory alloys

Abdul Wadood, Yoko Yamabe-Mitarai

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

Equiatomic TiAu and TiPt exhibit thermo-elastic martensitic phase transformation at high temperature. Phase transformation temperatures of TiPt (Af=1057°C) are about 400°C higher than TiAu (A f=624°C). However TiAu and TiPt exhibit partial shape memory effect and very low strength (e.g. ∼120MPa for TiAu and ∼20MPa for TiPt) in B2 phase region. So these alloys cannot be used for high temperature applications without improving their shape memory properties and strength in B2 phase region. Zirconium (Zr) belongs to same group IV as titanium (Ti). However atomic radius of Zr (1.58Å) is larger than Ti (1.47Å). So it was expected that partial substitution of Ti with Zr will improve the high temperature strength and shape memory properties of TiAu and TiPt alloys. Then in this study, we shall compare the effect of partial substitution of Ti with Zr on high temperature strength and shape memory properties of TiAu and TiPt high temperature shape memory alloys.

Original languageEnglish
Pages1-4
Number of pages4
DOIs
Publication statusPublished - 2014
Event2014 11th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2014 - Islamabad, Pakistan
Duration: 2014 Jan 142014 Jan 18

Conference

Conference2014 11th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2014
CountryPakistan
CityIslamabad
Period14/1/1414/1/18

ASJC Scopus subject areas

  • Management of Technology and Innovation

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  • Cite this

    Wadood, A., & Yamabe-Mitarai, Y. (2014). TiAu and TiPt high temperature shape memory alloys. 1-4. Paper presented at 2014 11th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2014, Islamabad, Pakistan. https://doi.org/10.1109/IBCAST.2014.6778107