A Mathematical Model of Deformation under High Pressure Torsion Extrusion
نویسندگان
چکیده
منابع مشابه
Numerical Analysis of Severe Plastic Deformation by High Pressure Torsion
High-pressure torsion (HPT) is a metal processing method in which the sample is subjected to a very high plastic shear deformation. This process can produce exceptional levels of grain refinement, and provides a corresponding improvement in mechanical properties. To investigate the stress and strain distribution due to HPT process finite element simulation were conducted to investigate effectiv...
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15 صفحه اولGrain-size effect on the deformation mechanisms of nanostructured copper processed by high-pressure torsion
The unique nonuniform deformation characteristic of high-pressure torsion was used to produce nanostructures with systematically varying grain sizes in a copper disk, which allows us to study the grain-size effect on the deformation mechanisms in nanostructured copper using a single sample. The as-processed copper disk has 100–200 nm grains near its center and 10–20 nm grains at its periphery. ...
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ژورنال
عنوان ژورنال: Metals
سال: 2019
ISSN: 2075-4701
DOI: 10.3390/met9030306