5 papers
Coupling of homogeneous and heterogeneous melting kinetics in polycrystalline materials
Meizhen Xiang, Yi Liao, Guomeng Li +1
Melting kinetics of polycrystalline materials is analyzed on the basis of a new model which explicitly couples homogeneous and heterogeneous melting mechanisms. The distinct featur…
Crystal Instabilities and Elastic Responses of Metals under Extreme Strain Rates
Kun Wang, Jun Chen, Wenjun Zhu +1
Despite of some progresses in investigating the roles of the higher-order strain gradients on elastic stabilities of solids, the physical nature on the higher-order elastic instabi…
Higher Order Elastic Instabilities of Metals: From Atom to Continuum Level
Kun Wang, Jun Chen, Wenjun Zhu +1
Strain-based theory on elastic instabilities is being widely employed for studying onset of plasticity, phase transition or melting in crystals. And size effects, observed in nano-…
Shock responses of nanoporous aluminum by molecular dynamics simulations
Meizhen Xiang, Junzhi Cui, Yantao Yang +4
We present systematic investigations on the shock responses of nanoporous aluminum (np-Al) by nonequilibrium molecular dynamics simulations. The dislocation nucleation sites are fo…
Phase Transition of Iron-based Single Crystals at Extreme Strain Rates under Dynamic Loadings
Kun Wang, Jun Chen, Wenjun Zhu +2
Phase transition of iron, as a prototype of martensite phase transition under dynamic loadings, exhibits huge diverges in its TP among experiments with different pressure medium an…