Journal
SCRIPTA MATERIALIA
Volume 55, Issue 2, Pages 139-142Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2006.03.048
Keywords
nickel-based superalloy; mechanical twinning; creep; yield phenomena
Ask authors/readers for more resources
The asymmetry of tensile/compressive yield strengths of single crystal Ni-based superalloys has been explained by the thermally activated cross-slip model. In contrast, the asymmetry of the creep strengths has been explained by the anisotropy of mechanical twin formation. In this study, a superalloy containing a high amount of tantalum was subjected to strength tests. Neither tension/compression asymmetry nor mechanical twinning was observed in the creep test. However, the tensile yield strength was higher than the compressive one, and micro-mechanical twinning was observed in the compressive yielded microstructure using high resolution transmission electron microscopy. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available