| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Integration between Modeling and Experiments for Crystalline Metals: From Atomistic to Macroscopic Scales IV
|
| Presentation Title |
Deformation Mechanisms of Hexagonal Close-packed Materials: Modeling and Experimentation |
| Author(s) |
Hamidreza Abdolvand |
| On-Site Speaker (Planned) |
Hamidreza Abdolvand |
| Abstract Scope |
Slip and twinning are the two main deformation mechanisms observed in hexagonal close-packed (HCP) polycrystals such as zirconium and magnesium alloys. This presentation will focus on characterizing the micromechanics of slip and twining using crystal plasticity finite element (CPFE) modeling and diffraction techniques. Three-dimensional synchrotron X-ray diffraction as well as electron backscatter diffraction are used to study formation of slip bands and twins. The “as-measured” microstructures are mapped into a CPFE model for further analysis. The evolution of 3D grain-resolved stresses will be discussed, so as the application of such measurement and modeling approaches in analyzing applied engineering problems. |