Incorporating dual BCC/FCC Zerilli-Armstrong and blue brittleness constitutive material models into Oxley’s machining shear zone theory
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DOI: 10.1016/j.jmapro.2019.09.036
Abstract: Abstract This work presents an extension of Oxley's shear zone theory by substituting the original velocity-modified power form by the widely used constitutive material model developed by Zerilli and Armstrong (ZA). Used are variations of… read more here.
Keywords: methodology; zerilli armstrong; bcc fcc; shear zone ... See more keywords
Solving a problem with a single parameter: a smooth bcc to fcc phase transition for metallic lithium.
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DOI: 10.1039/d2cc04928g
Abstract: Density functional calculations for metallic lithium along a cuboidal bcc-to-fcc transformation path demonstrate that the bcc phase is quasi-degenerate with the fcc phase with a very small activiation barrier of 0.1 kJ mol-1, but becomes… read more here.
Keywords: bcc; fcc phase; bcc fcc; phase ... See more keywords
Alkali-metal vibrations in bcc, fcc, hcp, and 9R structures: Implications for the energetics of Li and Na martensitic phases
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DOI: 10.1103/physrevb.110.174109
Abstract: We present an embedded-atom-method (EAM) model that is specifically designed to accurately describe vibrations in bcc alkali metals. Using this model, we study bulk vibrational structure of Li, Na, K, and Rb when configured in… read more here.
Keywords: bcc fcc; vibrations bcc; alkali metal; fcc hcp ... See more keywords