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Research Articles

Infrared thermography applied for experimental investigation of thermomechanical couplings in Gum Metal

, , , , &
Pages 226-233 | Received 17 Nov 2016, Accepted 13 Jan 2017, Published online: 01 Feb 2017
 

Abstract

Results of initial investigation of thermomechanical couplings in innovative β-Ti alloy called Gum Metal subjected to tension are presented. The experimental set-up, consisting of testing machine and infrared camera, enabled to obtain stress–strain curves with high accuracy and correlate them to estimated temperature changes of the specimen during the deformation process. Both ultra-low elastic modulus and high strength of Gum Metal were confirmed. The infrared measurements determined average and maximal temperature changes accompanying the alloy deformation process, allowed to estimate thermoelastic effect, which is related to the alloy yield point. The temperature distributions on the specimen surface served to analyse strain localization effects leading to the necking and rupture.

Acknowledgments

The authors are grateful to L. Urbański for performing mechanical tests.

Disclosure statement

No potential conflict of interest was reported by the authors.

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