Abstract
In order to study the influence of purification on the strength and plasticity of molybdenum single crystals in bending tests, the investigation was carried out on crystals of 6 orientations and two purity levels (r293K/r4.2K=95000 and 2000 respectively) in the temperature range from 77K to 373K. The dependence of yield stress and ductile-brittle transition temperature on crystal orientation and purity was established. The results are discussed in connection with the peculiarities of dislocation slip and multiplication in bending which are illustrated by x-ray epigrams.
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