Time-resolved Laue diffraction of deforming micropillars.
We demonstrate real-time resolved white beam Laue diffraction during compression of micron-sized focused ion beam milled single crystals Au pillars, revealing the dynamical correlation between microstructure and plasticity. The evolution of the Laue patterns of the Au pillars demonstrates the occurrence of crystal rotation and strengthening is explained by plasticity starting on a slip system that is geometrically not predicted but selected because of the character of the preexisting strain gradient.
Maass
Robert
R
Paul Scherrer Institut, CH-5232, Villigen PSI, Switzerland.
Van Petegem
Steven
S
Van Swygenhoven
Helena
H
Derlet
Peter M
PM
Volkert
Cynthia A
CA
Grolimund
Daniel
D