b'Figure 1. (a) Ring pull test fixture. TZM was used for the material to withstand high temperature testing. The fixture has interchangeable mandrel inserts to facilitate testing of rings from 5 to 20 mm ID. (b) Ring pull high temperature test setup inside of a Centorr load frame vacuum furnaceas cold spray coated tubes fromperformed at temperatures up to UW-Madison. Using ring pull testing800C. Figure 1 shows (a) the test at room and elevated temperature,fixture and (b) setup in a load frame differences in mechanical strengthwith vacuum furnace. were compared between the samples.Ring pull tension testing at room This year, one of the focuses was totemperature, 300 and 600C was implement high temperature ringperformed for three sample types: pull testing using a newly designedi) Zircaloy-4, ii) Zircaloy-4 with a fixture. The fixture was machinedCr coating applied with HiPIMS out of molybdenum alloy titaniumPhysical Vapor Deposition and iii) zirconium molybdenum (TZM) andZircaloy-4 with a Cr coating applied has interchangeable mandrels forwith cold spray deposition. The accommodating rings of differentcontrol material was from the same diameters. The fixture was designedtube as the cold spray coated samples, to be compatible with multiple loadwhile the HiPIMS coated Zircaloy-4 frames, and ring pull testing can betubes were different. Figure 2 shows 2023|AFC ACCOMPLISHMENTS 55'