Nanostructuring of TiNi Alloy by SPD Processing for Advanced Properties

Ruslan Valiev; Dmitry Gunderov; Egor Prokofiev; Vladimir Pushin; Yuntian Zhu

doi:10.2320/matertrans.ME200722

Ruslan Valiev, Dmitry Gunderov, Egor Prokofiev, Vladimir Pushin, Yuntian Zhu

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Keywords: severe plastic deformation, ultrafine grains, mechanical properties, shape memory titanium nickel alloy

JOURNAL FREE ACCESS

2008 Volume 49 Issue 1 Pages 97-101

DOI https://doi.org/10.2320/matertrans.ME200722

View "Advance Publication" version (December 12, 2007).

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Abstract

Ultrafine-grained (UFG) alloy Ti_49.4Ni_50.6 possessing both nano- as well as submicrocrystalline structure has been successfully produced using two techniques of severe plastic deformation (SPD) processing: high pressure torsion and equal channel angular pressing. The features of microstructure, martensitic transformation and deformation behavior of the UFG alloy have been studied in details. The effects of grain size on the mechanical and functional properties of the alloy are discussed.

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