Dislocation generation by a Frank-Read source was considered for the case of nanocrystalline metallic materials. It was shown that thermally activated operation of this mechanism, which was proposed in the literature as an explanation for the observed grain size dependence of the strain rate sensiti
On the kinetics of a Frank-Read source
β Scribed by P.S. Steif; R.J. Clifton
- Book ID
- 103262338
- Publisher
- Elsevier Science
- Year
- 1979
- Weight
- 607 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0025-5416
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π SIMILAR VOLUMES
## Abstract On the basis of a result obtained by DE WIT and KOEHLER an exact formula has been derived for the critical shear stress of a FrankβRead source, which can be applied to anisotropic crystals as well. Application of this formula in a few numerical cases shows that the effect of the anisotr
We give a new method for generating perfectly random samples from the stationary distribution of a Markov chain. The method is related to coupling from the past (CFTP), but only runs the Markov chain forwards in time, and never restarts it at previous times in the past. The method is also related to
condtttons of the flow For other y there are ranges of Ca where the sensitivity IS much less and much more Department of Chemtstry and