| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Accelerated Discovery and Insertion of Next Generation Structural Materials
|
| Presentation Title |
Rapid Characterisation of Active Slip Systems in Titanium Ordered-bcc Compounds using an Algorithm for Automated Indentation Slip Trace Analysis. |
| Author(s) |
Vincent Gagneur, Alexander J Knowles |
| On-Site Speaker (Planned) |
Vincent Gagneur |
| Abstract Scope |
Increasing the operating temperature of aerospace gas turbines is a key means to improve their fuel efficiency, which is currently limited by the capability of materials employed. Our work focusses on new beta-titanium ‘bcc-superalloys’, harnessing the high melting points of Mo and Nb, paired with the low-density of Ti. Inspired by widely used Nickel superalloys, these bcc-superalloys exploit a combination of a β matrix with ordered-bcc β’ precipitates. However, many bcc-superalloy systems are too brittle for commercial applications, with one reason being the absence of slip transfer between the bcc Ti matrix and the ordered-bcc TiFe precipitates, due partly to different slip directions being favoured, ½[111] vs [100] respectively. In this work, attempts to modify the favoured slip direction in TiFe through alloying are presented. Various B2 bulk compositions & gradient samples are characterised using micro-indentation slip trace analysis assisted by a novel high-throughput automated slip trace detection algorithm. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nanotechnology, Titanium, High-Temperature Materials |