Abstract
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 . This finding sheds new light on the phenomenon of small-scale plasticity in largely unexplored non-fcc metals.
- Received 4 May 2009
DOI:https://doi.org/10.1103/PhysRevLett.103.105501
©2009 American Physical Society