Simulation (IMAGE) Ruhr-University Bochum Caption Simulated grain boundary showing cage clustering (blue) at a titanium grain boundary. The blue atoms are titanium atoms in the vertices of the icosahedral cages, the red atoms are iron atoms and the gray atoms are other titanium atoms. Credit C. Liebscher Usage Restrictions The image may only be used in the context of the press release "Surprise at the Grain Boundary" published by RUB on October, 29, 2024. License Original 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.