The Microstructure and strength of a V–5Cr–5Ti alloy processed by high pressure torsion
| Autor: | Zs. Fogarassy, Éva Ódor, Gábor Ribárik, Zhijian Fan, Bertalan Jóni, Tamás Ungár |
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| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Diffraction Materials science Mechanical Engineering Alloy Torsion (mechanics) Line profile analysis 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure 01 natural sciences Indentation hardness Mechanics of Materials High pressure 0103 physical sciences engineering General Materials Science Composite material 0210 nano-technology Diffractometer |
| Zdroj: | Materials Science and Engineering: A. 758:139-146 |
| ISSN: | 0921-5093 |
| Popis: | The microstructure and the strength of high pressure torsion processed V–5Cr–5Ti alloy are investigated by X-ray line profile analysis and microhardness testing. High pressure torsion has been applied at 4 and 8 GPa with 0.25, 0.5, 1, 2, 4 and 8 rotations. The X-ray beam of the high angular resolution diffractometer, dedicated for line profile analysis, has a footprint of about 200 μm × 1.5 mm on the specimen. The diffraction patterns have been measured in the center, at half radius and close to the edge of the specimens. This technique has provided a large number of data of the microstructure and hardness as a function of strain up to about γ ≅ 300. The dislocation density determined by X-ray line broadening is correlated and discussed in terms of the strength of the alloy using the Taylor equation. |
| Databáze: | OpenAIRE |
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