Adaptative meshing finite-element-based discrete dislocation dynamics simulations were employed to predict dislocation junction formation in magnesium as well as their resulting strength. Apart from coplanar and collinear interactions, all possible interactions between basal, prismatic and pyramidal slip were considered. Among others it was found that while non-coplanar prismatic junctions were more likely than basal–prismatic junctions, the latter were more stable. However, pyramidal–prismatic junctions appeared more stable than pyramidal–basal junctions. Finally, non-coplanar pyramidal junctions were more likely than any other junction formation, and these junctions also appeared to be amongst the strongest.

Dislocation Junction Formation and Strength in Magnesium. L.Capolungo: Acta Materialia, 2011, 59[8], 2909-17