Modeling interstitial diffusion controlled twinning in alpha titanium during low-temperature creep

Structures of all sizes are subject to stresses over extended periods of time. Many structures consist of crystalline materials that can creep at room temperature. A recent discovery reveals twinning to be a major creep mechanism in metals. Traditionally, twins in metals are believed to grow rapidly, but this discovery shows that twins can grow very slowly. Crystallographic models are presented to explain slow twin growth. The models will have broad applications for understanding and developing materials for improved creep resistance.