Some Physical Characteristics of Strain Hardening in Severe Plastic Deformation

Beygelzimer Yan; Toth Laszlo S.; Jonas John J.

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Some Physical Characteristics of Strain Hardening in Severe Plastic Deformation

机译：Some Physical Characteristics of Strain Hardening in Severe Plastic Deformation

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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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《Advanced Engineering Materials》 |2015年第12期|1783-1791|共9页
作者
Beygelzimer Yan; Toth Laszlo S.; Jonas John J.;
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Natl Acad Sci Ukraine, Donetsk Inst Phys & Engn, UA-03028 Kiev, Ukraine;

Univ Lorraine, Lab Excellence Design Alloy Met Low Mass Struct D, F-57045 Metz 01, France;

McGill Univ, Mat Engn, Montreal, PQ H3A 2B2, Canada;

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正文语种英语
中图分类工程材料学;
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Some Physical Characteristics of Strain Hardening in Severe Plastic Deformation

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