ML22143A830
| ML22143A830 | |
| Person / Time | |
|---|---|
| Issue date: | 05/25/2022 |
| From: | Carolyn Fairbanks NRC/NRR/DNRL/NVIB |
| To: | |
| Kalikian R, 301-415-5590 | |
| Shared Package | |
| ML22143A408 | List: |
| References | |
| Download: ML22143A830 (13) | |
Text
Industry / NRC Materials Programs Technical Information Exchange Advanced Manufacturing Technologies Action Plan, Rev. 1 Carolyn Fairbanks U.S. Nuclear Regulatory Commission Office of Nuclear Reactor Regulation Division of New and Renewed Licenses Vessels and Internals Branch May 25-26, 2022
- Techniques and material processing methods
- Not traditionally used in the U.S. nuclear industry
- Not formally standardized/codified by the nuclear industry
- AMTs can include new ways to fabricate or join components, surface treatments, or other Advanced processing techniques to provide a performance or Manufacturing operational benefit.
Technologies
- Initial AMTs based on industry interest:
- Laser Powder Bed Fusion (LPBF)
- Laser Direct Energy Deposition (L-DED)
- Cold Spray
- Electron Beam Welding
- Powder Metallurgy - Hot Isostatic Pressing (PM-HIP) 2
First US Application of AMTs
- Thimble Plugging Device
- Installed in March 2020 in Byron
- 316L stainless steel -LPBF
- Very low safety significant component (Non ASME B&PV Code class)
- PWR environment with irradiation
- Installation done without prior NRC approval under Title 10 of the Code of Federal Regulations (10 CFR) 50.59 3
Second US Application of AMTs
- Fuel assembly hardware
- Installed in Spring 2021 in Browns Ferry
- ORNL printed Framatomes winged channel fastener body
- 316L stainless steel - LPBF
- 4 will be installed, harvesting one each cycle from 2023-2027 https://www.ornl.gov/news/additively-manufactured-components-ornl-headed-tva-nuclear-reactor?utm_source=miragenews&utm_medium=miragenews&utm_campaign=news 4
Action Plan, Rev. 1 - Tasks
- Task 1 - Technical Preparedness
- Technical information, knowledge and tools to prepare NRC staff to review AMT applications
- Task 2 - Regulatory Preparedness
- Guidelines to prepare staff for efficient and effective review of AMT-fabricated components submitted to the NRC for review and approval
- Task 3 - Communications and Knowledge Management
- Integration of information from external organizations into the NRC staff knowledge base for informed regulatory decision-making
- External interactions and knowledge sharing, i.e. AMT Workshop 5
Subtask 1A: AMT Processes under Consideration
- Perform a technical assessment of selected AMTs (Laser Powder Bed Fusion, Directed Energy Deposition, PM HIP, EB-welding, and Cold Spray)
- Gap assessment for each selected AMTs vs traditional manufacturing techniques Subtask 1B: Inspection and NDE Technical
- Assess the state of technologies in the testing and examination of AMTs Preparedness
- Will inform staff decisions related to use of NDE on AMT-fabricated components Subtask 1C: Modeling and Simulation of Microstructure and Properties Activities
- Evaluate modeling and simulation tools used to predict the initial microstructure, material properties and component integrity of AMT (Task 1) components
- Identify existing gaps and challenges that are unique to AMT compared to conventional manufacturing processes
- Survey of Modeling and Simulation Techniques for Advanced Manufacturing Technologies:
- Volume I - Predicting Initial Microstructures
- Volume II - Predicting Material Performance from Material Microstructure 6
Subtask 2A: Implementation using the 10 CFR 50.59 Process
- Provide guidance and support to regional inspectors regarding AMTs implemented under 50.59 Regulatory Subtask 2B: Assessment of Regulatory Guidance Preparedness
- Assess whether any regulatory guidance needs to be Activities updated or created to clarify the process for reviewing submittals with AMT components (Task 2)
Subtask 2C: AMT Guidelines Document
- Develop guidelines which describe the generic technical information to be addressed in AMT submissions
- Public meeting September 16, 2021 7
Communications and Knowledge Management (Task 3)
Public Workshop on AMTs for Nuclear Applications Location/Dates: Virtual, December 7-10, 2020 Objectives Discuss ongoing activities related to AMTs, including nuclear industry implementation plans, codes and standards activities, research findings, and regulatory approaches in other industries.
Inform public of NRCs activities and approach to approving use of AMTs.
Determine, with input from nuclear industry stakeholders and other technical organizations, areas where NRC should focus to ensure safe implementation of AMTs Participants ASME, US DOE, NIST, FAA, NASA, FDA, EPRI, NEI, Westinghouse, GE Hitachi, Kairos, VRC Metal Systems, Exelon, ORNL, PNNL, ANL, INL 8
NRC AMT Guidelines Development AMT-Specific (Initial 5 AMTs) Generic
- A Technical Letter Report (TLR) is produced for each of the initial five AMTs Technical Regulatory Guidelines
- Provides technical basis information and gap analysis (Subtask 1A)
Technical Technical (draft for FRN public comment)
Draft
- Written by NRC contractor (to date, DOE labs) Letter Report Assessment LPBF Guidelines Document LPBF LPBF ML20351A292 ML20351A292 ML21074A040
- A technical assessment (TA) is produced for each TLR by Technical Technical Draft Letter Report NRC staff that provides the NRC staff perspective on key Assessment Guidelines L-DED L-DED Document ML20233A693 aspects of the AMT for safety and component ML20233A693 L-DED Subtask 2C Final performance Technical Technical Draft Draft AMT Letter Report Assessment Guidelines Review Guidance Cold Spray Cold Spray Document ML21263A105 Guidelines for Initial ML21263A105 Cold Spray ML21074A037 AMTs
- A draft guidelines document (DGD), informed by the TA Technical Technical Draft and TLR, will be generated by the NRC staff for each AMT. Letter Report Assessment Guidelines Document
- The AMT-specific DGDs accompany and align with the PM-HIP PM-HIP PM-HIP Expected to generic Advanced Manufacturing Technologies Review Technical Technical Draft be developed Legend later after Guidelines Contractor-developed Letter Report Assessment Guidelines EBW EBW Document EBW DOE-EPRI NRC Staff-developed demo project 9
Status of Deliverables - Task 1 Subtask Actions/Deliverables Status Additive Manufacturing (AM) - Laser Powder Bed Complete - ML20351A292 Fusion AM - Directed Energy Deposition (DED) Complete - ML20233A693 1A AMT processes under consideration Cold Spray Complete - ML21263A105 Powder Metallurgy (PM) - Hot Isostatic Pressing (HIP) Complete Electron Beam (EB) welding Complete 1B Inspection and NDE PNNL NDE gap analysis Complete - ML20349A012 ANL M&S gap analysis to predict microstructure Complete - ML20269A301 1C Modeling and Simulation of Microstructure Complete - ML20350B550 ANL M&S gap analysis to predict material performance 10
Status of AMT Draft Guidelines Development Status Guideline Topic Draft guidelines discussed at Sept. 16 public meeting:
AMTs ML21074A037 - Draft AMT Review Guidelines ML21074A040 - Draft Guidelines Document for AM - LPBF Additive Manufacturing (AM) - Laser Powder Bed Fusion AM - Directed Energy Deposition (DED) Draft guidelines complete Cold Spray Draft guidelines complete Powder Metallurgy (PM) - Hot Isostatic Pressing (HIP) Draft guidelines not being developed at this time due to the state of these technologies and a specific ongoing research program to demonstrate Electron Beam (EB) welding their viability led by EPRI.
Status of Deliverables - Tasks 2 and 3 Subtask Actions / Deliverables Status Finalize document incorporating feedback from Regional staff 2A 50.59 process Complete - ML21200A222 regarding the 10 CFR 50.59 process 2B Assessment of regulatory guidance Path forward on guidance development or modification Complete - ML20233A693 Public meeting on guidance concept / framework summary: ML20240A077 Develop a document that describes the generic technical information Public meeting held on September 16, 2021 to 2C AMT Guidance Document to be addressed in AMT submittals. discuss:
ML21074A037 - Draft AMT Review Guidelines Public meeting to discuss draft document ML21074A040 - Draft Guidelines Document for AM -
LPBF Complete - summary: ML20357B071 3D Workshop Hold Public Workshop RIL: Part 1 Part 2 12