Multimetal Alloy (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption At 77K, back‐scattered electron images taken in the wake of a propagated crack show the formation of pronounced cell structures resulting from dislocation activity that includes deformation‐induced nano‐twinning. Credit Courtesy of Ritchie group Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.