Microdiffraction to detemine grain sizes at selected postitions in disks precessed by high-pressure torsion
Ungár, Tamás, Belogh, Levente, Zhu, Yuntian T., Horita, Zenji, Xu, Cheng and Langdon, Terence G (2007) Microdiffraction to detemine grain sizes at selected postitions in disks precessed by high-pressure torsion. Materials Science and Engineering: A, 444, (1-2), 153-156. (doi:10.1016/j.msea.2006.08.059).
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Description/Abstract
Disks of pure Cu, Cu–10% Zn and Cu–30% Zn were processed by high-pressure torsion (HPT) and then examined at selected positions using microhardness testing and X-ray microdiffraction line broadening. The results show excellent agreement between the microhardness measurements and X-ray microdiffraction. The grain sizes and the microhardness values are essentially constant across the diameters of the disks of pure Cu and the Cu–30% Zn alloy but for the Cu–10% Zn alloy the measured grain size is largest and the hardness is lowest in the center of the disk. The results demonstrate the potential for achieving a reasonably homogeneous microstructure in samples processed by HPT.
| Item Type: | Article |
|---|---|
| ISSNs: | 0921-5093 (print) |
| Related URLs: | |
| Keywords: | copper alloys, high-pressure torsion, microhardness, severe plastic deformation, x-ray line profile analysis |
| Subjects: | T Technology > TN Mining engineering. Metallurgy |
| Divisions: | University Structure - Pre August 2011 > School of Engineering Sciences > Engineering Materials & Surface Engineering |
| Item ID: | 43719 |
| Date Deposited: | 26 Jan 2007 |
| Last Modified: | 02 Mar 2012 12:29 |
| Contributors: | Ungár, Tamás (Author) Belogh, Levente (Author) Zhu, Yuntian T. (Author) Horita, Zenji (Author) Xu, Cheng (Author) Langdon, Terence G (Author) |
| Date: | 2007 |
| Status: | Published |
| Contact Email Address: | langdon@usc.edu |
| URI: | http://eprints.soton.ac.uk/id/eprint/43719 |
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