A method is presented to measure the entropy production occurring during uniaxial deformation of metals. The method relies on the entropy balance equation, implemented by the effective form of the series expansion of the Helmholtz potential up to second order, and referred to the embryonic stage of plastic deformation. The experimental results show a comparatively small entropy production during 'reversible' elastic deformation, switching to a higher level as irreversible plastic deformation sets in.

Measurement of the entropy production due to irreversible deformation of metals

BEGHI, MARCO
1982

Abstract

A method is presented to measure the entropy production occurring during uniaxial deformation of metals. The method relies on the entropy balance equation, implemented by the effective form of the series expansion of the Helmholtz potential up to second order, and referred to the embryonic stage of plastic deformation. The experimental results show a comparatively small entropy production during 'reversible' elastic deformation, switching to a higher level as irreversible plastic deformation sets in.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/662250
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