|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Hume-Rothery Award Symposium: Alloy Phase Chemistry at the Atomic Level - Opportunities and Challenges
||Precipitation Kinetics: Quantitative In-situ Characterization Using Small-angle Scattering Helps Establish Models Validity
||Alexis Deschamps, Frederic De Geuser, Mark J Styles, Christopher R. Hutchinson
|On-Site Speaker (Planned)
Small-Angle Scattering, using X-rays (SAXS) or neutrons (SANS) enables a precise quantitative characterization of precipitates at the nanoscale. Being non-destructive and realized on samples of a relatively large volume, these techniques are well suited to time-resolved in-situ studies along any thermal treatment. As such, they are particularly suited in conjunction to precipitation models to establish their validity, their robustness in complex situations such as non-isothermal heat treatments, and obtain missing materials parameters such as the interfacial energy of forming metastable precipitates, that play a major role in the precipitation kinetics models. This talk will present several case studies on Aluminum alloys, Cu alloys and steels, where the interplay between quantitative characterization and modelling improves the understanding of the underling phenomena. In particular, the description of dynamic phenomena occurring during non-isothermal heat treatments will be addressed, as well as the influence of alloy supersaturation, using materials with a composition gradient.
||Planned: Supplemental Proceedings volume