b'ding [1]. The precharging of theFollowing the two TREATFigure 1. Prehydrided cladding hydrogen in the cladding resultedexperiments, initial post-transientsimilar to that used to build the PreH in rods that contained ~400 ppmexaminations were performed andtest specimens, showing elongated circumferential hydrides and higher hydrogen with Zirconium hydridesidentified that the rodlets wereconcentration of hydrides near the forming in the circumferentialintact. The rodlets did experienceouter rimdirection in the cladding (See Figuresome permanent strain deformation 1; [1]). Two rodlets were fabricatedcaused by the transient, but the at INL and shipped to NSRR whereamount of strain was insufficient to they completed the first experimentcause failure. Strain for the PreH-3 in December 2022 and the second inrodlet was an average of 1.2% while September 2023. for PreH-4 was 0.7%. Figure 2 shows HERA-PreH-4 rodlet inspection 2023|AFC ACCOMPLISHMENTS 99'