DATE:

Friday, April 15, 2022

TIME:

3:30 PM

LOCATION:

GMCS 314

SPEAKER:

Dr. Wenwu Xu, Mechanical Engineering, San Diego State University

ABSTRACT:

Classical molecular dynamics (MD) simulation method is employed to study the uniaxial tensile deformation of nanocrystalline magnesium (Mg) of varying grain size levels. The deformation nanomechanics reveals two distinct deformation mechanisms: dislocation dominated deformation and grain boundary-based mechanisms. Dislocation density quantification shows that the dislocation density in the sample drastically reduces with decreasing grain size. The present work reveals the nanomechanics of nanocrystalline Mg, facilitating the design and development of Mg-based nanostructured alloys with superior mechanical properties.

HOST:

Jose Castillo

VIDEO: