Measures of Ductility for UFG Materials Obtained by SPD
| Autor: | Sergey Synkov, Yan Beygelzimer, Viktor Varyukhin, O. Prokof'eva, Roman Kulagin |
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| Rok vydání: | 2009 |
| Předmět: |
Materials science
Mechanical Engineering Alloy Metallurgy chemistry.chemical_element engineering.material Condensed Matter Physics Discontinuity (geotechnical engineering) chemistry Mechanics of Materials engineering General Materials Science Extrusion Severe plastic deformation Composite material Elongation Titanium |
| Zdroj: | Materials Science Forum. :223-230 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.633-634.223 |
| Popis: | It is shown that for ultrafine grained materials obtained with severe plastic deformation methods, the value of elongation up to fracture does not determine ductility, while the reduction of area up to fracture does determine it. The latter characteristic gives information about how an alloy structure resists the formation of discontinuity flaws under deformation in a hard stress state. We show that for a commercial grade titanium that underwent Twist Extrusion (TE), the value of , and thus ductility, is higher in the UFG state than in the coarse-grained state. |
| Databáze: | OpenAIRE |
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