Rejuvenation of creep resistance of a Ni-base single-crystal superalloy by hot isostatic pressing

•A single specimen is exposed to a creep-rejuvenation-creep test cycle.•A hot isostatic press providing fast quenching rates is used for rejuvenation.•Microstructural evolution before and after creep as well as, rejuvenation are studied.•Focus is on the γ/γ′-microstructure, pores, dislocations, and recrystallization.•The impact of rejuvenation on additional creep life is evaluated.