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Determination of effective stress and dislocation velocity in the deformation of Ti-doped iron

  • Mechanical Behavior
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Abstract

Measurements have been done of the stress sensitivity of the strain rate and of the strainvs stress in a commercial, Ti-doped, “interstitial free” (IF) iron. In conjunction with a theoretical analysis, these measurements allow the determination of the constants of the power-law relationship between dislocation velocity and effective stress, as well as the mean free dislocation path descriptive of parabolic strain hardening. The theory can then be used to calculate the effective stress for various mechanical histories and thus predict many of the mechanical properties of the IF iron. The methods, if more generally applicable, represent a significant advance in our quantitative understanding of inelastic deformation and may permit more precise control of industrial deformation processing.

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Authors and Affiliations

  1. Department of Metals and Materials Engineering, University of British Columbia, V6T 1W5, Vancouver, BC, Canada

    Thomas H. Alden (Professor)

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  1. Thomas H. Alden
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Alden, T.H. Determination of effective stress and dislocation velocity in the deformation of Ti-doped iron. Metall Trans A 20, 1029–1036 (1989). https://doi.org/10.1007/BF02650139

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  • DOI: https://doi.org/10.1007/BF02650139

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