NSUF 20-2990: The origin of exceptional IASCC resistance of the additively-manufactured stainless steel after hot isostatic pressing
The exceptional irradiation-assisted stress corrosion cracking (IASCC) resistance was observed and reported from the additively-manufactured (AM) 316L stainless steel after hot isostatic pressing (HIP) process through the completed DOE NEET project (DE-NE0008428). However, the fundamental mechanism is still unclear. This proposed NSUF RTE project seeks to conduct proton irradiation at the University of Michigan (UM) and TEM characterization at CAES to confirm the observation on different heats of AM materials and test one mechanistic hypothesis. The planned experiment will take 2 weeks of instrument time at UM and CAES and be completed in 4-6 months. Identifying the subtle changes in the AM material during HIPing that may lead to the exceptional IASCC resistance not only support the on-going development of nuclear specifications for additive manufacturing but also improve our basic understandings of IASCC. The further study of this phenomenon may also open a new pathway to develop IASCC resistant alloys (both AM and wrought) for nuclear applications.
Informație Adițională
| Cîmp | Valoare |
|---|---|
| Awarded Institution | Auburn University |
| Embargo End Date | 2024-05-09 |
| Facility Tech Lead | Alina Montrose, Kevin Field, Mukesh Bachhav |
| Irradiation Facilities | Michigan Ion Beam Laboratory |
| NSUF Call | FY 2020 RTE 1st Call |
| PI | Xiaoyuan Lou |
| PI Email | [email protected] |
| PI Phone Number | 334-844-5071 |
| PIE Facilities | Microscopy and Characterization Suite |
| Project Member | Dr. Miao Song, Assistant Reserach Scientist - University of Michigan (https://orcid.org/0000-0003-3672-0707) |
| Project Member | Dr. Xiaoyuan Lou, Associate Professor - Purdue University (https://orcid.org/0000-0003-2211-0959) |
| Project Notes | Awarded on 02/05/2020 |
| Project Type | RTE |
| Publication | Compositionally graded specimen made by laser additive manufacturing as a high-throughput method to study radiation damages and irradiation-assisted stress corrosion cracking Xiaoyuan Lou Journal of Nuclear Materials 560 2022-03-01 https://www.sciencedirect.com/science/article/pii/S0022311521007133 |
| Publication | Intragranular irradiation-assisted stress corrosion cracking (IASCC) of 316L stainless steel made by laser direct energy deposition additive manufacturing: Delta ferrite-dislocation channel interaction Xiaoyuan Lou Journal of Nuclear Materials 577 2023-04-15 https://www.sciencedirect.com/science/article/pii/S0022311523000752 |
| Publication | Void swelling in additively manufactured 316L stainless steel with Hafnium composition gradient under self-ion irradiation Xiaoyuan Lou Journal of Nuclear Materials 578 2023-05-01 https://www.sciencedirect.com/science/article/pii/S0022311523001216 |
| Publication | A comparison study of void swelling in additively manufactured and cold-worked 316L stainless steels under ion irradiation Xiaoyuan Lou Journal of Nuclear Materials 551 2021-08-01 https://www.sciencedirect.com/science/article/abs/pii/S0022311521001690 |
| Publication | Dislocation channel broadening–A new mechanism to improve irradiation-assisted stress corrosion cracking resistance of additively manufactured 316 L stainless steel Xiaoyuan Lou Acta Materialia 266 2024-03-01 https://www.sciencedirect.com/science/article/abs/pii/S135964542400003X |
| RTE Number | 2990 |