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Computer simulation of solid solution strengthening in Fcc alloys: Part II. At absolute zero temperature

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Abstract

Computer simulation techniques were used to explicate solid solution strengthening in fcc metals. With this approach, it was not necessary to make a number of the assumptions used in analytical investigations. A semicontinuum model, with a flexible dislocation line interacting with a random array of solute atoms, was employed. The dislocation line tension was assumed constant, and classical elastic size or modulus interactions were assumed between the solute atoms and the dislocation line segment. The size effect was again found to be dominant, and the yield stress was predicted as {\(\tau _y \)}=0.069 με4/3 1/2. Although there were no adjustable parameters in this study, agreement with experimental data was quite good.

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Authors and Affiliations

  1. Institute of Metals Research, Academica Sinica, Shenyang, The People's Republic of China

    R. J. Arsenault (Professor and Director) & S. Patu (Visiting Scholar, Research Associate)

  2. Metallurgical Materials Laboratory, University of Maryland, 20742-2111, College Park, MD

    R. J. Arsenault (Professor and Director) & S. Patu (Visiting Scholar, Research Associate)

  3. Civil, Mechanical, and Environmental Engineering Department, George Washington University, 20052, Washington, DC

    D. M. Esterling (Professor)

Authors
  1. R. J. Arsenault
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  2. S. Patu
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  3. D. M. Esterling
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Arsenault, R.J., Patu, S. & Esterling, D.M. Computer simulation of solid solution strengthening in Fcc alloys: Part II. At absolute zero temperature. Metall Trans A 20, 1419–1428 (1989). https://doi.org/10.1007/BF02665499

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