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Experimental study of energy accumulation and dissipation in iron in an elastic-plastic transition

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Abstract

Modern experimental studies of the temperature evolution at the surface of plastically deformed metals show that processes of energy accumulation and dissipation in the material are nonlinear even in the quasi-static case and obviously depend on the loading conditions as well as past history of deformation. Considerable intensification of investigations in this field, which has been observed during the last decade, is due to the fact that this class of problems has wide application apart from its fundamental importance. High-sensitivity IR detectors used in such experiments make it possible to develop new effective methods of nondestructive control, which are based on analysis of thermal precursors of deformation localization and failure. In this study, the features of propagation of thermal waves on the surface of pure iron under an elastic-plastic transition are investigated and time dependences of energy accumulation rate are obtained during quasi-static deformation.

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Authors and Affiliations

  1. Institute of Continuous Media Mechanics, Ural Division, Russian Academy of Sciences, Perm, 614013, Russia

    O. A. Plekhov & O. Naimark

  2. E.N.S.A.M. Labaratorie Matériaux Endommagement Fiabilité et Ingénierie des Procédés (LAMEFIP), EA 2727, Esplanade des Arts et Métiers, 33405, Talence Cedex, France

    N. Saintier

Authors
  1. O. A. Plekhov
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  2. N. Saintier
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  3. O. Naimark
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Corresponding author

Correspondence to O. A. Plekhov.

Additional information

Original Russian Text © O.A. Plekhov, N. Saintier, O. Naimark, 2007, published in Zhurnal Tekhnicheskoĭ Fiziki, 2007, Vol. 77, No. 9, pp. 134–136.

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Plekhov, O.A., Saintier, N. & Naimark, O. Experimental study of energy accumulation and dissipation in iron in an elastic-plastic transition. Tech. Phys. 52, 1236–1238 (2007). https://doi.org/10.1134/S106378420709023X

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  • DOI: https://doi.org/10.1134/S106378420709023X

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