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Rank-one connections and microstructure in single crystals and polycrystals
John Ball
Location: Hill 705
Date & time: Friday, 10 April 2026 at 3:30PM - 4:30PM
The talk will describe how nonlinear elasticity can be used to predict microstructure arising from solid phase transformations in alloys, and survey some recent results related by the common theme of finding rank-one connections between energy wells, these describing possible planar interfaces between different phases. The results
concern slip and twinning in Bravais lattices, compatibility of martensitic microstructures across polycrystal grain boundaries, and remarkable martensitic microstructures
observed in the alloy Ti76Nb22Al2.