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Meeting Materials Science & Technology 2020
Symposium Bulk and Sheet Thermal-Deformation Processing and Microstructure Development in Metals – Characterization, Experiments and Modeling
Presentation Title Characterisation of static recrystallisation and grain growth in designed gradient microstructures: a pathway to high-throughput microstructural testing?
Author(s) Nicholas Breeuwer, Daniel Lewis, Milo Kral, Catherine Bishop
On-Site Speaker (Planned) Catherine Bishop
Abstract Scope High-throughput testing has been identified as a key method required to identify specific high entropy alloys for commercialisation from the enormous compositional search space. Here a method of parallel microstructural testing is demonstrated in alpha brass that shows potential for accelerating alloy testing and qualification. We use finite element analysis to design samples with controlled, inhomogeneous cold work. Subsequent interrupted annealing and optical characterisation allow the determination of recrystallisation and grain growth behaviour. We validate (i) sample design against strain from digital image correlation and (ii) grain size analysis using optical methods against EBSD methods. The results derived from gradient samples compare favourably with those obtained from homogeneous samples. The potential of this method to be used in alloy testing and qualification will be discussed.
Proceedings Inclusion? Undecided

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Austenite Stability and Strain Localization in Q&P Steels Deformed at Dynamic Strain Rates
Characterisation of static recrystallisation and grain growth in designed gradient microstructures: a pathway to high-throughput microstructural testing?
Continuum Dislocation Dynamics-based Modeling of the Strain Hardening Behavior of ECAPed Aluminum Alloy
Microstructure and Mechanical Properties of Diffusion Bonded IN740H
Probing Differences in Processing and Texture in FCC/BCC Nanolaminates Fabricated via Accumulative Roll Bonding

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