About this Abstract |
Meeting |
6th International Congress on 3D Materials Science (3DMS 2022)
|
Symposium
|
6th International Congress on 3D Materials Science (3DMS 2022)
|
Presentation Title |
Influence of Microtextured Regions on Early Plasticity in Ti64 |
Author(s) |
Joseph Wendorf, James Lamb, McLean Echlin, Samuel Hémery, Paul Dawson, Tresa Pollock |
On-Site Speaker (Planned) |
Joseph Wendorf |
Abstract Scope |
Titanium alloys have been extensively used throughout the cold section of jet engines for several decades due to their high strength to weight ratio and excellent fatigue performance. However, many titanium alloys develop microtextured regions (MTRs) during forging which have been shown to significantly reduce dwell fatigue life. Although MTRs typically contain thousands of individual grains, Tribeam serial sectioning enables the collection of 3D EBSD datasets large enough in volume to characterize the 3D structure of MTRs with high enough resolution to also characterize individual grain boundaries. The effect of extreme hard and soft grain neighborhoods found within MTRs on slip initiation within Ti64 has been investigated by combining a 3D EBSD dataset with high resolution surface DIC strain measurements as well as 3D crystal plasticity calculations. The importance of soft grains embedded in hard MTRs will be discussed. |
Proceedings Inclusion? |
Definite: Other |