Attend a seminar on the mesoscale modeling of deformation twinning in hexagonal metals, March 20
About
Jian Wang is the Wilmer J. and Sally L. Hergenrader Presidential Chair of Mechanical and Materials Engineering at the University of Nebraska–Lincoln, a position he has held since 2015. He earned a doctoral degree from Rensselaer Polytechnic Institute in 2006 and served as a technical staff member at Los Alamos National Laboratory until 2015.
His research focuses on quantitatively exploring structure-property relationships in materials using multiscale theory, modeling and experimental methods. Wang has received numerous honors, including the Los Alamos National Laboratory Distinguished Postdoctoral Performance Award; the Laboratory-Directed Research and Development Program Early Career Award; the MPMD Young Leaders Professional Development award from The Minerals, Metals & Materials Society, or TMS; the International Plasticity Young Research Award; the Materials Today Rising Star Award in Materials Genome Innovation; the TMS MPMD Distinguished Scientist/Engineer Award; and the TMS Brimacombe Medalist award.
He is a Fellow of the American Society of Mechanical Engineers and a Fellow of ASM International. He serves on the editorial boards of the International Journal of Plasticity and Materials Research Letters, among others. He has published more than 430 peer-reviewed papers.
Abstract
Twinning is a dominant deformation mechanism in hexagonal close-packed metals. It exhibits more complex nucleation, propagation and thickening mechanisms than those observed in cubic structures, including face-centered cubic and body-centered cubic materials. Twinning and detwinning associated with unidirectional shear cause crystallographic reorientation, texture evolution and interactions with other crystal defects. Interactions between twins and grain boundaries can trigger sequential twinning and dislocation slip in neighboring grains. The activated deformation modes are strongly correlated with incoming twins and the misorientation between adjacent grains.
In this talk, the speaker focuses on mesoscale modeling of deformation twinning in hexagonal metals by developing a coupled crystal plasticity finite element-phase field model. The presentation also introduces experimental insights into twinning behavior that inform and strengthen mesoscale model development. These findings provide a theoretical foundation for researchers to reinterpret experimental data, refine the framework of twinning mechanisms and advance alloy design.
Mesoscale Modeling of Deformation Twinning in Hexagonal Metals seminar
Friday, March 20. 2026
11 a.m.–noon
Interdisciplinary Science and Technology Building 12 (ITSB12) room 215, Polytechnic campus [map]