NSUF EBR-II-HEXBLOCK: EBR-II Legacy Hexblocks and Assemblies
The HEX-BLOCK inventory is composed of two major parts. The most accessible part for future research was derived from an EBR-II reflector assembly designated U9807 that has been extensively disassembled with various portions of the inventory residing at two locations, Westinghouse-Pittsburgh and Idaho National Laboratory. The second, much larger part of the inventory resides only at Idaho National Laboratory, but has not been disassembled, requiring significant funding and effort to render them available for further research. This second part of inventory is comprised of five complete EBR-II reflector assemblies, U9902 from Row 9, and assemblies U9005, U9006, and U9027 from Row 10. Reflector U9027 was fabricated with a 12% cold-worked Type 316 steel can and Type 304 steel blocks, while the other four assemblies had Type 304 steel cans and blocks. See the attached documentation describing these five assemblies. For a description of the general features of the hex-blocks in each of these assemblies, see the reports describing the disassembled assembly designated as U9807. Additionally, see the compiled publications resulting from various studies on U9807. The U9807 assembly was originally composed of a stack of 5 hexagonal cross-section 304 SS blocks contained in a thin-wall (1 mm) hexagonal 304 SS wrapper duct located in row 8 of the EBR-II fast reactor in contact with sodium flowing between the blocks and the wrapper duct. Each block had dimensions of ~52 mm flat-to-flat cross-sectional thickness and 218-250 mm length, with the length depending on the individual block. Block 1 at the bottom of the assembly was discarded as waste upon disassembly. During their in-core residence the U9807 blocks spent about four-and a-half years (~54 months) in row 8 and were then parked in row 16 for about eight years (~96 months). The largest fraction of the dose (~97%) was accumulated in row 8 before the middle of 1986 and the assembly was discharged from the reactor in late 1994. The five blocks accumulated ~0.4 to ~33 dpa depending on their axial and radial position in the block assembly, with the highest doses experienced on the inboard core-facing side of the assembly. Significant axial and radial gradients in dpa rate, temperature and gamma heating, with the latter leading to significant internal temperature increases, developed over the stack of five blocks, producing a complex internal spatial distribution of void swelling, thereby leading to measurable macroscopic distortion of the blocks. Two of the five blocks, namely, block 3, positioned at mid-core height and experiencing the maximum neutron exposure, and block 5, positioned well above the core at much lower neutron exposure were selected for destructive examination, specifically to allow identification and separation of two concurrent but opposite strain contributions arising from void -related swelling and carbide precipitation-related densification. As a result of cutting, blocks 3 and 5 have been rendered into a large collection of various size specimens ranging from TEM disks, thin plates, cm-size cubes and various larger sizes, all suitable for immediate access and examination. While small portions of this inventory have been shipped to various National laboratories and universities, the largest portion of this inventory is located at Westinghouse-Pittsburgh. All portions of this inventory have assigned temperatures, displacement doses and calculated helium levels. The remaining two blocks (2, 4) from U9807 reside at INL and are available for studies requiring larger volumes of material. Some limited profilometry data is available and displacement doses and temperatures can be generated from available information.
Papildoma informacija
| Laukas | Reikšmė |
|---|---|
| Awarded Institution | None |
| Embargo End Date | 2032-01-16 |
| Facility Tech Lead | Alina Montrose, Mukesh Bachhav |
| NSUF Call | Library Submission |
| PI | None |
| Project Member | Dr. Wei-Ying Chen, Material Scientist - Argonne National Laboratory (https://orcid.org/0000-0002-6583-4204) |
| Project Member | Ms. Kelly Cunningham, NSUF Fuels and Materials Library Coordinator - Idaho National Laboratory (https://orcid.org/0000-0002-9144-7339) |
| Project Type | RTE |
| Publication | Void swelling and resultant strains in thick 304 stainless steel components in response to spatial gradients in neutron flux-spectra and irradiation temperature Frank Garner, Paula Freyer, Douglas Porter, Yina Huang Proceedings of 16th International Conference on Environmental Degradation of Materials in Nuclear Power Systems - Water Reactors |
| Publication | Recent experimental results on neutron-induced void swelling of AISI 304 stainless steel concerning its interactive dependence on temperature and displacement rate Frank Garner Fontevraud-6 Symposium on Contribution of Materials Investigations to Improve the Safety and Performance of LWRs 2006-09-18 - 2006-09-22 |
| Publication | Recent Insights on Neutron-induced Void Swelling and Irradiation Creep of AISI 304 Stainless Steel Frank Garner Proceedings of 13th International Conference on Environmental Degradation of Materials in Nuclear Power Systems 2007-08-19 - 2007-08-23 |
| Publication | Measurement of depth-dependent swelling in thick non-uniform irradiated 304 stainless steel blocks using nondestructive ultrasonic techniques Frank Garner, Paula Freyer, Yina Huang, Douglas Porter Fontevraud 8 - Contributions of Materials Investigations and Operating Experience to LWR's Safety, Performance and Reliability 2014-09-03 - 2014-09-06 |
| Publication | Transmission Electron Microscopy of 304-type Stainless Steel after Exposure to Neutron Flux and Irradiation Temperature Gradients Yina Huang, Frank Garner, Paula Freyer Microscopy and Microanalysis 2014 2014-08-03 - 2014-08-07 |
| Publication | Void Swelling of Annealed 304 Stainless Steel at ~370-385C and PWR-Relevant Displacement Rates Bulent Sencer, Frank Garner, Todd Allen, Douglas Porter 9th International Conference on Environmental Degradation of Materials in Nuclear Power Systems ? Water Reactors |
| Publication | Microchemical and microstructural evolution of AISI 304 stainless steel irradiated in EBR-II at PWR-relevant dpa rates Yan Dong, Bulent Sencer, Frank Garner, Emmanuelle Marquis Journal of Nuclear Materials 467 2015-12-01 https://www.sciencedirect.com/science/article/pii/S0022311515003852#ack0010 |
| Publication | A simulation model of ultrasonic wave changes due to irradiation-induced microstructural evolution of thick 304 stainless steel blocks Journal of Nuclear Materials 441 2013-10-01 https://www.sciencedirect.com/science/article/pii/S0022311513008854#ak005 |
| Publication | Combined sketches of NSUF inventory of previously cut specimens from U9807 blocks #3 and #5 None None 2018-01-01 None |
| Publication | Assessment of the swelling equation used to predict swelling of AISI 304 strainless steel in LWR and LMR environments Frank Garner Environmental degradation of materials in nuclear power systems 2013-08-12 - 2013-08-15 |
| Publication | Application of backscatter electrons for large area imaging of cavities produced by neutron irradiation Paula Freyer, Frank Garner Journal of Nuclear Materials 480 2016-11-01 https://www.sciencedirect.com/science/article/pii/S0022311516304986#ack0010 |
| Publication | Microstructural characterization and density change of 304 stainless steel reflector blocks after long-term irradiation in EBR-II Yina Huang, Frank Garner, Paula Freyer, Todd Allen Journal of Nuclear Materials 465 2015-10-01 https://www.sciencedirect.com/science/article/pii/S0022311515300556 |
| Publication | Mechanical behavior of AISI 304SS determined by miniature test methods after neutron irradiation to 28 dpa Ellen Rabenberg, Brian Jaques, Bulent Sencer, Frank Garner, Paula Freyer, Darryl Butt Journal of Nuclear Materials 448 2014-05-01 https://www.sciencedirect.com/science/article/pii/S0022311514000804 |
| Publication | Using UT to assess neutron-induced damage Paula Freyer, Frank Garner Nuclear Engineering International None 2014-06-05 http://www.neimagazine.com/features/featureusing-ut-to-assess-neutron-induced-damage-4286620/ |
| Publication | Validation of ultrasonic velocity measurements in first wall structural materials Frank Garner, Paula Freyer Fusion Science and Technology 66 2014-06-28 https://www.tandfonline.com/doi/abs/10.13182/FST13-755 |
| Publication | Development of a nondestructive inspection method for irradiation-induced microstructural evolution of thick 304 stainless steel blocks Frank Garner, Paula Freyer Journal of Nuclear Materials 440 2013-09-01 https://www.sciencedirect.com/science/article/pii/S002231151300442X#aep-acknowledgment-id24 |
| Publication | Measurement of Helium Generation in AISI 304 Reflector and Blanket Assemblies after Long-Term Irradiation in EBR-II Frank Garner, Douglas Porter, Todd Allen Journal of ASTM International,Research 20 2013-09-11 https://www.researchgate.net/publication/237739538_MEASUREMENT_OF_HELIUM_GENERATION_IN_AISI_304_REFLECTOR_AND_BLANKET_ASSEMBLIES |
| Publication | Neutron Fluences for EBR-II Reflector Assemblies U9902, U9003, U9005, U9006 and U9027 OSTI Technical Report None 2014-09-30 https://www.osti.gov/biblio/1495197-neutron-fluences-ebr-ii-reflector-assemblies-u9902-u9003-u9005-u9006-u9027 |
| Publication | Hot Cell Pulsed Laser Welding of Neutron Irradiated Type 304 Stainless Steel With a Maximum Damage Dose of 28 DPA Paula Freyer, Jonathan Tatman, Frank Garner, Benjamin Sutton Pressure Vessels and Piping Conference 2019-07-14 - 2019-07-19 |
| Publication | Influence of injected interstitials on the void swelling in two structural variants of 304L stainless steel induced by self-ion irradiation at 500 °C Cheng Sun, Frank Garner, Lin Shao, Xinghang Zhang, Stuart Maloy Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 409 2017-10-15 https://www.sciencedirect.com/science/article/pii/S0168583X17303105 |
| Publication | Role of cavities on deformation-induced martensitic transformation pathways in a laser-welded, neutron irradiated austenitic stainless steel Janelle Wharry, Keyou Mao, Cheng Sun, Kayla Yano, Paula Freyer, Anter EL-AZAB, Frank Garner, Aaron French, Lin Shao Scripta Materialia 178 2020-03-15 https://doi.org/10.1016/j.scriptamat.2019.10.037 |
| Publication | Effect of laser welding on deformation mechanisms in irradiated austenitic stainless steel Janelle Wharry, Keyou Mao, Cheng Sun, Xiang Liu, Aaron French, Paula Freyer, Frank Garner, Lin Shao Journal of Nuclear Materials 528 2020-01-01 https://doi.org/10.1016/j.jnucmat.2019.151878 |
| Publication | Grain orientation dependence of nanoindentation and deformation-induced martensitic phase transformation in neutron irradiated AISI 304L stainless steel Keyou Mao, Cheng Sun, Yina Huang, Frank Garner, Paula Freyer, Janelle Wharry Materialia 5 2019-03-13 https://www.sciencedirect.com/science/article/pii/S2589152919300031 |
| Publication | Probing the Damage Recovery Mechanism in Irradiated Stainless Steels Using In-Situ Microcantilever Bending Test Keyou Mao, Kayla Yano, Philip Edmondson, Cheng Sun, Janelle Wharry Frontiers in Materials None 2022-02-14 https://doi.org/10.3389/fmats.2022.823192 |
| Publication | Orientation-selected micro-pillar compression of additively manufactured 316L stainless steels: Comparison of as-manufactured, annealed, and proton-irradiated variants Ching-Heng Shiau, Cheng Sun, Michael McMurtrey, Frank Garner, Lin Shao JNM 566 2022-08-17 https://www.sciencedirect.com/science/article/pii/S0022311522002276 |
| Publication | Microstructural changes of proton irradiated Hastelloy-N and in situ micropillar compression testing of one single grain at different local damage levels Andres Morell-Pacheco, Ching-Heng Shiau, Boopathy Kombaiah, Lingfeng He, Adam Gabriel, Frank Garner, Lin Shao JNM None 2022-07-22 https://www.sciencedirect.com/science/article/pii/S0022311522004251 |
| Publication | Use of combined linear and nonlinear ultrasound to examine microstructural and microchemical variations in highly irradiated 304 stainless steel Jinyeon Kim, James Wall, Frank Garner, Laurence Jacobs Journal of Nuclear Materials 545 2021-03-01 https://www.sciencedirect.com/science/article/pii/S0022311520312526 |
| Publication | Void Swelling of Annealed 304 Stainless Steel at ~370-385C and PWR-Relevant Displacement Rates Francis Garner, Todd Allen, Douglas Porter 9th International Conference on Environmental Degradation of Materials in Nuclear Power Systems – Water Reactors 1999-08-01 - 1999-08-02 |
| Publication | Recent experimental results on neutron-induced void swelling of AISI 304 stainless steel concerning its interactive dependence on temperature and displacement rate Frank Garner Fontevraud-6 Symposium on Contribution of Materials Investigations to Improve the Safety and Performance of LWRs 2006-09-18 - 2006-09-22 |
| Publication | Recent Insights on Neutron-induced Void Swelling and Irradiation Creep of AISI 304 Stainless Steel Frank Garner, Morris Hall 13th International Conference on Environmental Degradation of Materials in Nuclear Power Systems 2007-08-19 - 2007-08-23 |
| Publication | NDT Measurements of Irradiation Induced Void Swelling in EBR-II Materials Frank Garner None None https://inis.iaea.org/collection/NCLCollectionStore/_Public/35/099/35099049.pdf |
| Publication | Microstructural and micromechanical characterization of laser weld repairs on neutron irradiated 304 stainless steel Keyou Mao, Paula Freyer, Cheng Sun, Frank Garner, Janelle Wharry NUMAT 2018 2018-10-15 - 2018-10-18 |
| Publication | Measurement of void swelling in thick non-uniformly irradiated 304 stainless steel blocks using nondestructive ultrasonic techniques Frank Garner, Paula Freyer, Huang Hanchen, Douglas Porter Proceedings of Fontevraud 8 - Contributions of Materials Investigations and Operating Experience to LWR's Safety, Performance and Reliability 2014-08-16 - 2014-08-16 |
| Publication | Role of low-level void swelling on plasticity and failure in a 33 dpa neutron-irradiated 304 stainless steel, International Journal of Plasticity Frank Garner, Hi Vo, David Frazer, Aaron Kohnert, Sebastien Teysseyre, Saryu Fensin, Peter Hosemann International Journal of Plasticity 164 2023-05-01 https://www.sciencedirect.com/science/article/pii/S0749641923000633 |
| Publication | Microstructure analysis of laser beam weldments performed on neutron-irradiated 304L steel containing 3 and 8 appm helium Maxim Gussev, Weicheng Zhong, Frank Garner, Paula Freyer, Jonathan Tatman, Jesse Werden Journal of Nuclear Materials 563 2022-05-18 https://www.sciencedirect.com/science/article/abs/pii/S0022311522001349 |
| Publication | Microstructure and microchemistry of laser welds of irradiated austenitic steels Keyou Mao, Aaron French, Xiang Liu, Cheng Sun, Paula Freyer, Jonathan Tatman, Frank Garner, Lin Shao, Janelle Wharry Materials and Design 206 2021-08-11 https://www.sciencedirect.com/science/article/pii/S0264127521003178 |