ICAMS / Interdisciplinary Centre for Advanced Materials Simulation

Atomistic Modelling and Simulation (AMS)

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Dr. Sergei Starikov

Postdoctoral Researcher

Group: Atomistic simulation of mechanical behaviour
Department of Atomistic Modelling and Simulation

Ruhr-Universität Bochum
IC 02/727
Universitätsstr. 150
44801 Bochum
Tel. +49 234 32 25395
Email: Sergei Starikov

My mission:

(left) Atomistic simulation of a particle containing two grains: the surface emits point defects diffusing along GB. (right) Calculated bulk and GB self-diffusion in iron.
My current research is focused on study of bulk and grain boundary (GB) self-diffusion of atoms in bcc metals. I combine different models for comprehensive investigation of diffusion processes. In particular, large scale atomistic simulation of a spherical nanoparticle containing two grains allows us to determine principal characteristics of GB self-diffusion: free surface of the simulated particle naturally regulates formation and removal of point defects that govern diffusion along GB. In our recent article, we found that atomic self-diffusion in symmetric tilt GBs in iron is mostly driven by self-interstitial atoms. In contrast, in general GBs atoms diffuse predominantly via an exchange mechanism that does not involve a particular defect but is similar to diffusion in liquid. Most observed mechanisms lead to significant enhancement of self-diffusion along GBs as compared to diffusion in the bulk.

Research Interests:

Interatomic potential, phase transitions.

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Professional Experience

2007-2018 Researcher, JIHT, Moscow, Russia
from 2011 Visiting scientist, Argonne National Lab, USA


2011, PhD, Condensed Matter Physics, MEPhI, Moscow, Russia
2007, Diplom, Radiophysics and Electroncis, Orenburg State University, Russia

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