Precipitation kinetics in a direct strip casted steel
Direct strip casting (DSC) is a promising emerging processing technology for steels which may save up to 90% energy. For conventionally prepared precipitation strengthened steels, precipitation occurs during the hot rolling process in a controled manner. This proposal aims at understanding the precipitation kinetics in DSC processed steels. In particular, we plan to study: 1) the influence of the cooling rate and 2) the kinetics of precipitation during a post-casting heat treatment. The fine scale of the precipitates (up to 10nm) and the relative chemical inhomogeneity of the materials necessitates a large volume of analysis together with an outstanding spatial resolution. SANS is the only precipitate microstructure characterisation technique offering these two .features. The samples will be prepared ex-situ and analysed under saturating magnetic field to exploit the strong magnetic scattering contrast between the precipitates and the ferromagnetic iron matrix.
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DE GEUSER Frederic; CUBITT Robert; DESCHAMPS Alexis; DORIN Thomas; IVANOV Rosen and SUN Xinyu. (2015). Precipitation kinetics in a direct strip casted steel. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.1-01-142
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