Abstract

Mechanisms of fatigue failure of metals at low temperatures are considered. It is shown that, in this case, a feature of fatigue fracture is the processes of elastoplastic cyclic deformation, which are realized with an increased yield point and an increase in the thermal conductivity of metals. Localization of deformations and sliding of dislocations are preserved in thin surface layers along planes quite definite for a given material. Keywords: low temperature, yield point, hardness, fatigue properties, failure mechanism. uru.40@mail.ru

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