Influence of Grain Size and Contact Temperature on the Tribological Behaviour of Shape Memory Ti49.3Ni50.7 Alloy

Influence of Grain Size and Contact Temperature on the Tribological Behaviour of Shape Memory... An experimental study investigating the influence of macro-, micro- and nanoscale structural refinement and contact temperatures in the range of 20−800 °C on the tribological characteristics of shape memory Ti49.3Ni50.7 alloy processed via severe rolling with a pulse current and subsequent annealing at various temperatures is presented. Analysis revealed an increase in alloy strength characteristics, a decrease in the adhesive component of the friction coefficient and a decrease in the tendency to seizure in the course of friction with a decrease in grain size. The temperature dependence of the adhesive component of the friction coefficient for all structure states was found to have a maximum at 250–350 °C. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Tribology Letters Springer Journals

Influence of Grain Size and Contact Temperature on the Tribological Behaviour of Shape Memory Ti49.3Ni50.7 Alloy

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Publisher
Springer US
Copyright
Copyright © 2017 by Springer Science+Business Media, LLC
Subject
Materials Science; Tribology, Corrosion and Coatings; Surfaces and Interfaces, Thin Films; Theoretical and Applied Mechanics; Physical Chemistry; Nanotechnology
ISSN
1023-8883
eISSN
1573-2711
D.O.I.
10.1007/s11249-017-0917-6
Publisher site
See Article on Publisher Site

Abstract

An experimental study investigating the influence of macro-, micro- and nanoscale structural refinement and contact temperatures in the range of 20−800 °C on the tribological characteristics of shape memory Ti49.3Ni50.7 alloy processed via severe rolling with a pulse current and subsequent annealing at various temperatures is presented. Analysis revealed an increase in alloy strength characteristics, a decrease in the adhesive component of the friction coefficient and a decrease in the tendency to seizure in the course of friction with a decrease in grain size. The temperature dependence of the adhesive component of the friction coefficient for all structure states was found to have a maximum at 250–350 °C.

Journal

Tribology LettersSpringer Journals

Published: Aug 30, 2017

References

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