| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Titanium Technology
|
| Presentation Title |
Effect of Grain Orientation on Slip Transmission in Titanium: An Analysis of Strain Localization within Slip Bands |
| Author(s) |
Behnam Ahmadikia, Irene Beyerlein |
| On-Site Speaker (Planned) |
Behnam Ahmadikia |
| Abstract Scope |
Stress-based conditions that enhance the propensity for slip transmission across a boundary in commercially pure titanium (CP-Ti) are studied in this work. A novel full-field fast Fourier transform (FFT)-based elasto-viscoplastic model that accounts explicitly for discrete slip bands in crystals (SB-FFT) is presented and applied to investigate the effect of grain neighbor orientation on the slip band development in CP-Ti. Then, this model along with a new slip band tip stress-based criterion to predict the propensity of slip transmission are validated using experiments on HCP metals. Finally, the effect of grain neighbor orientation on slip transmission is studied through numerous simulations, each with a unique c-axis misorientation between two neighboring crystals. Calculations reveal that while transmission likelihood is not clearly associated with geometric factors, there is a correlation between c-axis misorientation of two contiguous grains and the type of system onto which a slip band is anticipated to transmit. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, Titanium, Mechanical Properties |