About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
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Neutron and X-ray Scattering in Materials Science
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Presentation Title |
Use of Neutron and X-ray Total Scattering to Map Short-range Order and Improve Nucleation Modelling in Engineering Materials |
Author(s) |
Monika Rolinska, Joakim Odqvist, Peter Hedström |
On-Site Speaker (Planned) |
Monika Rolinska |
Abstract Scope |
Neutron and X-ray total scattering enables study of short-range order interactions in materials. In engineering materials such as stainless steels and nickel-based superalloys, the initial short-range order will influence the ageing kinetics and thus also the lifetime of the component. For ferritic and duplex stainless steels it has been shown previously that an intermediate heat treatment above the miscibility gap, but below the conventional solution treatment temperature, affects the phase transformation kinetics at accelerated service conditions. This is linked to the initial short-range interactions, and has also been shown utilizing modelling on different scales. By mapping the short-range order above the miscibility gap using total scattering for different solution treatment temperatures for different systems, it is possible to obtain data which could improve both nucleation modelling and help to more accurately predict the phase transformation kinetics. |
Proceedings Inclusion? |
Planned: |
Keywords |
Phase Transformations, Other, |