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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, [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


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Rapid Characterisation of Active Slip Systems in Titanium Ordered-bcc Compounds using an Algorithm for Automated Indentation Slip Trace Analysis.
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