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Schneider, A S; Kaufmann, D; Clark, B G; Frick, C P; Gruber, P A; Mönig, R; Kraft, O; Arzt, E
Physical review letters, 09/2009, Letnik: 103, Številka: 10Journal Article
Microcompression tests were performed on focused-ion-beam-machined micropillars of several body-centered-cubic metals (W, Mo, Ta, and Nb) at room temperature. The relationship between yield strength and pillar diameter as well as the deformation morphologies were found to correlate with a parameter specific for bcc metals, i.e., the critical temperature T(c). This finding sheds new light on the phenomenon of small-scale plasticity in largely unexplored non-fcc metals.
