Some Physical Characteristics of Strain Hardening in Severe Plastic Deformation
Source abstract
Abstract
It is shown here using group theory principles that the Hencky strain is not an appropriate measure for tests involving simple shear, for which the von Mises formulation should be used exclusively. It is also shown analytically that the application of self‐similarity principles to Stages III–IV indicates that these obey power laws, while the same principles do not apply to the other stages. As a result, they do not develop self‐similar microstructures. Finally, the effect of strain path on the work hardening rates themselves is also examined. It is shown that the lowest rates are again associated with simple shear because this is the path along which the number of intersecting slip systems is the lowest.
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Research context
OpenAlex topics: Microstructure and mechanical properties · Metal Forming Simulation Techniques · Metallurgy and Material Forming
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Donetsk Institute for Physics and Engineering named after A.A. Galkin National Academy of Sciences of Ukraine pr. Nauki 46 Kyiv 03028 Ukraine
Laboratory of Excellence for Design of Alloy Metals for low‐Mass Structures (DAMAS) Université de Lorraine Île du Saulcy Metz cedex 01 F‐57045 France
Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux ('LEM3') UMR 7239 CNRS/Université de Lorraine F‐57045 Metz France
Materials Engineering McGill University 3610 University St., Montreal H3A 2B2 QC
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