MECHANISMS OF YIELD STRESS ANOMALIES IN BERYLLIUM AND NI3AL

Authors
CAILLARD D COURET A MOLENAT G
Citation
D. Caillard et al., MECHANISMS OF YIELD STRESS ANOMALIES IN BERYLLIUM AND NI3AL, Materials science & engineering. A, Structural materials: properties, microstructure and processing, 164(1-2), 1993, pp. 69-81
Citations number
37
Categorie Soggetti
Material Science
Journal title
Materials science & engineering. A, Structural materials: properties, microstructure and processing → ACNP
ISSN journal
09215093
Volume
164
Issue
1-2
Year of publication
1993
Pages
69 - 81
Database
ISI
SICI code
0921-5093(1993)164:1-2<69:MOYSAI>2.0.ZU;2-D
Abstract
The origin of the anomalous increase in yield stress with increasing t emperature observed in many materials is discussed with reference to t he well-documented cases of prismatic glide in beryllium and octahedra l glide in Ni3Al and related alloys. The main experimental results are reviewed, and compared with the most current models. The outlines of a new model are presented for Ni3Al, based on the same general princip les as that derived in beryllium.