Characterisation of nano-scale precipitates in BOR60 irradiated T91 steel using atom probe tomography

•T91 steel was irradiated in BOR60 reactor at five different temperature/dose conditions.•The number density, volume fraction, size and composition of the early stage Mn, Ni, Si -rich clusters have been characterised by atom probe tomography.•After irradiation, Ni, Mn, Si and P segregation to carbid...

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