Publications de Kristopher Learion Baker

Grain boundary mediated plasticity: The role of grain boundary atomic structure and thermal activation

2018

Multiscale diffusion method for simulations of long-time defect evolution with application to dislocation climb

William Curtin, Kristopher Learion Baker

In many problems of interest to materials scientists and engineers, the evolution of crystalline extended defects (dislocations, cracks, grain boundaries, interfaces, voids, precipitates) is controlled by the flow of point defects (interstitial/substitutio ...

Pergamon-Elsevier Science Ltd2016

Assessment of phase-field-crystal concepts using long-time molecular dynamics

William Curtin, Kristopher Learion Baker

The ability of the phase-field-crystal (PFC) model to quantitatively predict atomistic defect structures in crystalline solids is addressed. First, general aspects of the PFC model are discussed within the context of obtaining quantitative results in solid ...

American Physical Society2015

Illuminating the chemo-mechanics of hydrogen enhanced fatigue crack growth in aluminum alloys

Derek Warner, Kristopher Learion Baker

The presence of elemental hydrogen is known to accelerate fatigue crack growth in aluminum alloys. However, a direct link between experimental data and the governing atomistic mechanisms has remained elusive. Here we present a series of computational studi ...

Pergamon-Elsevier Science Ltd2015