To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S2. Nucleation of dislocation loops at a subnanometer-sized precipitate. Nanoscale precipitates as sustainable dislocation sources for enhanced ductility and high strength Shenyou Peng, Yujie Wei, and Huajian Gao PNAS. 2020. 117:5204-5209 DOI: 10.1073/pnas.1914615117 Download Original Video Browse All Videos »