User login

Navigation

You are here

Dislocation-Obstacle Interactions

Harnessing atomistic simulations to predict the rate at which dislocations overcome obstacles

Predicting the rate at which dislocations overcome obstacles is key to understanding the microscopic features that govern the plastic flow of modern alloys. In this spirit, the current manuscript examines the rate at which an edge dislocation overcomes an obstacle in aluminum. Predictions were made using different popular variants of Harmonic Transition State Theory (HTST) and compared to those of direct Molecular Dynamics (MD) simulations. The HTST predictions were found to be grossly inaccurate due to the large entropy barrier associated with the dislocation–obstacle interaction.

Subscribe to RSS - Dislocation-Obstacle Interactions

Recent comments

More comments

Syndicate

Subscribe to Syndicate