Correlation between critical temperature and strength of small-scale bcc pillars.
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.
Schneider
A S
AS
Max Planck Institute for Metals Research, Heisenbergstrasse 3, 70569 Stuttgart, Germany.
Kaufmann
D
D
Clark
B G
BG
Frick
C P
CP
Gruber
P A
PA
Mönig
R
R
Kraft
O
O
Arzt
E
E