Abstract
Nanocrystalline titanium was produced by equal channel angular pressing (ECAP). It was found that during ECAP a texture evolved in the specimen in which the hexagonal "c" axis is perpendicular to the extrusion direction. The crystallite size distribution and the dislocation structure were determined by fitting ab-initio theoretical functions to the Fourier coefficients of the measured X-ray diffraction peak profiles. The peak profile analysis provided the median and the variance of the crystallite size distribution: m=38 nm and σ=0.49, respectively. The dislocation slip system population was found to be 75% 〈a〉 type, 20% 〈c〉 type and 5% 〈c+a〉 type.
| Original language | English |
|---|---|
| Pages (from-to) | 229-234 |
| Journal | Materials Science Forum |
| Volume | 414-415 |
| Online published | Jan 2003 |
| DOIs | |
| Publication status | Published - 2003 |
| Externally published | Yes |
| Event | 3rd Hungarian Conference on Materials Science, Testing and Informatics - Balatonfured, Hungary Duration: 14 Oct 2001 → 17 Oct 2001 |
Research Keywords
- Crystallite size distribution
- Dislocation structure
- Plastic deformation
- Titanium
- X-ray peak profile analysis
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