TY - JOUR
T1 - An intrinsic correlation between driving force and energy barrier upon grain boundary migration
AU - Lin, Bo
AU - Wang, Kang
AU - Liu, Feng
AU - Zhou, Yaohe
N1 - Publisher Copyright:
© 2018
PY - 2018/8
Y1 - 2018/8
N2 - The migration of grain boundary (GB), which plays a key role in the microstructural evolution of polycrystalline materials, remains mysterious due to the unknown relationship between GB mobility associated with specific geometry and external conditions (e.g. temperature, stress, etc., hence the thermodynamic driving force). Combining the rate equation of GB migration with molecular dynamics simulations, an intrinsic correlation between driving force and energy barrier for the migration of various types of GBs (i.e. twist, symmetric tilt, asymmetric tilt, and mixed twist-tilt) is herein explored, showing the decrease of energy barrier with increasing thermodynamic driving force.
AB - The migration of grain boundary (GB), which plays a key role in the microstructural evolution of polycrystalline materials, remains mysterious due to the unknown relationship between GB mobility associated with specific geometry and external conditions (e.g. temperature, stress, etc., hence the thermodynamic driving force). Combining the rate equation of GB migration with molecular dynamics simulations, an intrinsic correlation between driving force and energy barrier for the migration of various types of GBs (i.e. twist, symmetric tilt, asymmetric tilt, and mixed twist-tilt) is herein explored, showing the decrease of energy barrier with increasing thermodynamic driving force.
KW - Grain boundary
KW - Kinetics
KW - Molecular dynamics
KW - Thermodynamics
UR - http://www.scopus.com/inward/record.url?scp=85033461124&partnerID=8YFLogxK
U2 - 10.1016/j.jmst.2017.11.002
DO - 10.1016/j.jmst.2017.11.002
M3 - 文章
AN - SCOPUS:85033461124
SN - 1005-0302
VL - 34
SP - 1359
EP - 1363
JO - Journal of Materials Science and Technology
JF - Journal of Materials Science and Technology
IS - 8
ER -