Nuclear power generation plants undergo start-up/shut-down load-temperature cycles during normal service operation. Components operating at temperatures in the creep regime can exhibit time-dependent creep recovery during a shut-down, which can have a large effect on the material's overall creep performance.We have previously looked at the strain accumulation in different grain families during creep and anelasticity. In this experiment, we want to investigate the intergranular origins of the backstress, by observing the intergranular strain evolution during partial unloads, which useful for justify the model have been developed.Please note this experiment forms part of the OU/Bristol Programme Application for Beamtime studying the Internal State of Steels for Nuclear Systems.