Some Physical Characteristics of Strain Hardening in Severe Plastic Deformation

作者: Yan Beygelzimer , Laszlo S. Toth , John J. Jonas

DOI: 10.1002/ADEM.201500097

关键词: Mechanicsvon Mises yield criterionStrain (chemistry)Structural engineeringStrain hardening exponentSevere plastic deformationPower lawWork hardeningSimple shearMaterials scienceMeasure (physics)

摘要: It is shown here using group theory principles that the Hencky strain not an appropriate measure for tests involving simple shear, which von Mises formulation should be used exclusively. also analytically application of self-similarity to Stages III-IV indicates these obey power laws, while same do apply other stages. As a result, they develop self-similar microstructures. Finally, effect path on work hardening rates themselves examined. lowest are again associated with shear because this along number intersecting slip systems lowest.

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