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On the behaviour of body-centred cubic metals to one-dimensional shock loading.
- Source :
-
Journal of Materials Science . Jun2011, Vol. 46 Issue 11, p3899-3906. 8p. 1 Black and White Photograph, 1 Diagram, 3 Charts, 3 Graphs. - Publication Year :
- 2011
-
Abstract
- The response of metallic materials to shock loading, like all loading regimes, is controlled largely by factors operating at the microscopic or atomic levels. Over the past few years, face-centred cubic (fcc) metals have received a level of attention where the role of features such as stacking fault energy and precipitation hardening have been investigated. We now turn our attention to body-centred cubic (bcc) metals. In the past, only tantalum, tungsten, and their alloys have received significant attention at high strain-rate conditions due to their use by the ordnance community. In particular, this investigation examines the shear strength of these materials at shock loading conditions. Previous results on tantalum, tungsten, and a tungsten heavy alloy are reviewed, and more recent experiments on niobium, molybdenum, and Ta-2.5 wt% W presented. Results are discussed in terms of known deformation mechanisms and variations of Peierl's stress. [ABSTRACT FROM AUTHOR]
- Subjects :
- *GEOLOGIC faults
*METALLURGY
*TANTALUM
*TUNGSTEN
*STRAINS & stresses (Mechanics)
Subjects
Details
- Language :
- English
- ISSN :
- 00222461
- Volume :
- 46
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- Journal of Materials Science
- Publication Type :
- Academic Journal
- Accession number :
- 59340993
- Full Text :
- https://doi.org/10.1007/s10853-011-5311-4