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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), pp. 153-156. (doi:10.1016/j.msea.2006.08.059).

Record type: Article


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.

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Published date: 2007
Keywords: copper alloys, high-pressure torsion, microhardness, severe plastic deformation, x-ray line profile analysis
Organisations: Engineering Mats & Surface Engineerg Gp


Local EPrints ID: 43719
ISSN: 0921-5093
PURE UUID: 3c81ea20-85bf-4c0b-b996-3ddc81d04622
ORCID for Terence G Langdon: ORCID iD

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Date deposited: 26 Jan 2007
Last modified: 17 Jul 2017 15:17

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Author: Tamás Ungár
Author: Levente Belogh
Author: Yuntian T. Zhu
Author: Zenji Horita
Author: Cheng Xu

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