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Standardization of the strength of metals under conditions of low-temperature instability of plastic deformation and the action of strong magnetic fields

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Strength of Materials Aims and scope

Abstract

We propose an approach to determination of allowable stresses by a static-strength criterion for materials of structures that operate at very low temperatures (T≤20 K). This approach takes into account the qualitative change in the nature of deformation of the material, which has a significant effect on the mechanical characteristics and the specific work of deformation. The choice of critical stresses for these conditions is substantiated. The calculations are performed by introducing corrections for low-temperature hardening of the material in the presence of the intermittent-flow effect. We discuss the possibility of taking into account the influence of strong magnetic fields on the magnitude of allowable stresses.

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Authors
  1. E. V. Vorob'ev
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  2. V. A. Strizhalo
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Additional information

Institute of Problems of Strength, National Academy of Sciences of Ukraine, Kiev, Ukraine. Translated from Problemy Prochnosti, No. 5, pp. 42–52, September–October, 1999.

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Vorob'ev, E.V., Strizhalo, V.A. Standardization of the strength of metals under conditions of low-temperature instability of plastic deformation and the action of strong magnetic fields. Strength Mater 31, 459–466 (1999). https://doi.org/10.1007/BF02511164

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  • DOI: https://doi.org/10.1007/BF02511164

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