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Metallurgical and Materials Transactions A
Published in: Metallurgical and Materials Transactions A 13/2009

01-12-2009

Hardening and Softening Behavior by Cyclic High-Pressure Torsion

Authors: F. Wetscher, R. Pippan

Published in: Metallurgical and Materials Transactions A | Issue 13/2009

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Abstract

Pure nickel was deformed by a combination of conventional and cyclic high-pressure torsion. The change of the mechanical strength during the deformation was measured, and microstructural features were determined for specific cases. A cyclic deformation of the ultrafine-grained structure obtained by severe plastic deformation leads to a localization of the deformation due to deformation-induced grain coarsening. Furthermore, an explanation for the observed decrease of the mechanical strength after reversal of the strain path is given.
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Metadata
Title
Hardening and Softening Behavior by Cyclic High-Pressure Torsion
Authors
F. Wetscher
R. Pippan
Publication date
01-12-2009
Publisher
Springer US
Published in
Metallurgical and Materials Transactions A / Issue 13/2009
Print ISSN: 1073-5623
Electronic ISSN: 1543-1940
DOI
https://doi.org/10.1007/s11661-009-0008-x

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