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m OF TiiiS OOClMiii IS IfoLitflTM 2. EA-400 and EA-404 39 a. Tritium Retention and Burnup Analysis 39 b. Pellet Swelling 42 c. Stainless Steel Corrosion 44 d. Conclusions 44 ACKNOWLEDGEMENTS 46 LIST OF FIGURES Figure Number Caption Page Number 11.1 Capsule Design for Ex-reactor Stress Corrosion 4 Capsule 11.2 Corrosion Depth as a Function of Stress for 5 the Stress Corrosion Capsules. Arrows indicate where at least half of the corrosion depth was by grain boundary penetration. 11.3 Optical Micrographs Showing One-Month Corrosion 6 of Ti-Mod. 316 and High Ni Alloy at 500°C and 0.01 LiOH. a) Ti-Mod. 316, Low Stress; (b) High Stress; (c) High Ni Alloy, Low Stress; d) High Stress 11.4 Optical Micrographs Showing One-Month Corrosion of Ti-mod. 316 and High Ni Alloy at 600°C and 0.01 LiOH. (a) Ti-mod. 316, low stress; b) high stress; c) High Ni alloy, low stress; d) high stress 11.5 Optical Micrographs Showing One-Month Corrosion of Ti-mod. 316 and High Ni Alloy at 500°C and 0.06 *iOH. (a) Ti-mod. 316, low stress; b) high stress; c) High Ni alloy, low stress; d) high stress 11.6 Optical Micrographs Showing One-Month Corrosion of Ti-mod. 316 and High Ni Alloy at 600°C and 0.06 LiOH. (a) Ti-mod. 316, low stress; b) high stress; c) High Ni alloy, low stress; d) high stress 11.7 Optical Micrographs Showing 12-Month Corrosion of 11 Ti-mod. 316 and High Ni Alloy at 600°C and 0.06 LiOH. (a) Ti-mod. 316, low stress; b) high stress; c) High Ni alloy, low stress; d) high stress 11.8 Optical Micrographs Showing 12-Month Corrosion of 12 Ti-mod. 316 and High Ni Alloy at 600°C and Dry Li 2 0. (a) Ti-mod. 316, high stress; b) High Ni alloy, high stress 11.9 Optical Micrographs Showing 12-Month Corrosion of 13 Ferritic Alloy HT-9 at 600*C and 0.06 LiOH. Capsule was in high stress condition.