This work was supported in part by the National Science Foundation of the United States under Grant No. DMR-1160966 and in part by the European Research Council under ERC Grant Agreement No. 267464-SPDMETALS.
Influence of Anvil Alignment on Shearing Patterns in High-Pressure Torsion†
Article first published online: 3 APR 2013
Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Advanced Engineering Materials
Volume 15, Issue 8, pages 747–755, August 2013
How to Cite
Huang, Y., Kawasaki, M. and Langdon, T. G. (2013), Influence of Anvil Alignment on Shearing Patterns in High-Pressure Torsion. Adv. Eng. Mater., 15: 747–755. doi: 10.1002/adem.201200363
- Issue published online: 2 AUG 2013
- Article first published online: 3 APR 2013
- Manuscript Accepted: 25 FEB 2013
- Manuscript Received: 27 NOV 2012
- National Science Foundation of the United States. Grant Number: DMR-1160966
- European Research Council under ERC. Grant Number: 267464-SPDMETALS.
A two-phase duplex stainless steel was used as a model material in order to investigate the development of flow patterns when processing using high-pressure torsion (HPT). The results show that double-swirls are visible on the disc surfaces when processing with controlled amounts of anvil misalignment but not when the anvils are in an essentially perfect alignment. There are also shear vortices visible on the disc surfaces when processing with controlled amounts of misalignment but not when using perfect alignment. These results demonstrate the need for exercising significant care when processing discs by HPT. Prior to introducing torsional straining, it is important to ensure that the upper and lower anvils are in good alignment to within ≈25 µm.