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A conventional approach for estimating the yield strength consists in calculation of a critical shear stress for bowing out of gliding dislocation segments between barriers. According to Orovan theory, the critical shear stress k is determined by the average distance l between obstacles: k = Gb / l, where is the constant; G is the shear module; b is the Burgers vector.The superposition of various barriers is taken into account as additive of different contributions
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Konobeev et al. (2017) studied this question.
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