ML23324A233

S0P2 - Focht - NRC AMT Activities Overview v2.0

ML23324A233
Person / Time
Issue date:	10/24/2023
From:	Eric Focht NRC/RES/DE
To:
Eric Focht 301-415-2094
Shared Package
ML23324A231	List: ML23324A232 ML23324A233 ML23324A239 ML23324A270
References
Download: ML23324A233 (14)

Text

OVERVIEW OF U.S. NRC AMT ACTIVITIES 2023 NRC Workshop on Advanced Manufacturing Technologies for Nuclear Applications October 24-26, 2023 NRC HQ, Rockville, MD Eric Focht (eric.focht@nrc.gov)

U.S. NRC Office of Nuclear Regulatory Research The views expressed by the author do not necessarily Division of Engineering - Materials Engineering Branch reflect those of the Nuclear Regulatory Commission

2 DRIVERS FOR NRC ACTIVITIES

• A variety of stakeholders are working toward more widespread use in both existing and future nuclear applications:

• Vendors and licensees/applicants

• Identifying candidate applications

• Developing technical bases for gaining regulatory acceptance

• Nuclear Energy Institute - Developed advanced manufacturing methods (AMM) roadmap to understand industry needs/interests and assist with regulatory acceptance (2019)

• Electric Power Research Institute - Developing techniques for large components in small modular reactors, developing data package for LPBF and WA-DED ASME draft Code Cases

• US Department of Energy - Developed the AMMT 2022 Roadmap

• Performing basic and applied research, technology development, data infrastructure, and developing a qualification framework to support AMT implementation

3 NRC AMT ACTIVITIES TIMELINE 2017 2018 2019 2020 2021 2022 2023 NRC begins AMT UNR 2023 AMT AMT efforts 2020 AMT NDE Meeting initiated Workshop 2017 AMT 2023 AMT Workshop Workshop Pre-AMT Post-AMT Action Plan AMT Action Plan Action Plan

4 2017 NRC AMT WORKSHOP

• The objectives of the workshop

• Outcomes:

were to cover topics including:

• Proceedings of the workshop published as

• The state-of-the-art of AM NUREG/CP-0310 (ML19214A205)

• Industry activities

• Next steps included further engagement with

• Irradiation testing and effects on industry.

AM

• AM qualification

• Codes & standards

• NDE

• Cybersecurity

• Regulatory perspectives

5 AMT ACTION PLAN (2019-2022)

• The NRC completed the AMT Action Plan which accomplished the following objectives:

• Assessed the safety significant performance-based differences between AMTs and traditional manufacturing processes.

• Prepared the NRC staff for potential reviews (five AMTs, modeling, and NDE).

• Identified and addressed AMT characteristics pertinent to safety that are not managed or addressed by codes, standards, regulations, etc.

• Risk-informed and performance-based perspective

• Provided draft Staff guidance and tools for review consistency, communication, and knowledge management.

• Revision 1 of the AMT Action Plan was published in June 2020 (ML19333B980).

6 AMT ACTION PLAN (CONT.)

AMT-Specific (Initial 5 AMTs) Generic

• NRC AMT Action Plan products:

• Technical Letter Reports (TLRs) Technical (Subtask 1A)

Regulatory Guidelines (Subtask 2C)

• Provide technical bases information and Draft gap analyses Technical Technical Letter Report Guidelines Assessment LPBF Document

• Prepared by NRC contractors (to date, LPBF LPBF DOE labs) Technical Technical Draft Guidelines

• Technical assessments (TAs)

Letter Report Assessment L-DED Document L-DED L-DED

• Provides the NRC staff perspective on Draft Subtask 2C Final key aspects of the AMT for safety and Technical Letter Report Technical Guidelines Draft AMT Guidance Assessment Review component performance.

Document for Initial Cold Spray Cold Spray Cold Spray Guidelines AMTs

• Draft guidelines documents (DGDs) Technical Technical Draft Guidelines

• Informed by the TA and TLR and Letter Report Assessment Document PM-HIP PM-HIP PM-HIP Expected to generated by the NRC staff for each be developed Legend AMT. Technical Technical Assessment Draft Guidelines later after Contractor-developed Letter Report DOE-EPRI

• Please visit the NRC AMT public website Document EBW EBW EBW NRC Staff-developed demo project to download the available reports:

• https://www.nrc.gov/reactors/power/am ts.html#status

7 AMT ACTION PLAN PRODUCTS Subtask Actions/Deliverables Status Additive Manufacturing (AM) - Laser Complete - ML20351A292 Powder Bed Fusion AM - Directed Energy Deposition (DED) Complete - ML21301A077 1A AMT processes under Cold Spray Complete - ML21263A105 consideration Powder Metallurgy (PM) - Hot Isostatic Complete - ML22134A437 Pressing (HIP)

Electron Beam (EB) welding Complete - ML22143A927 1B Inspection and NDE NDE gap analysis Complete - ML20349A012 M&S gap analysis to 1C Modeling and Simulation of Complete - ML20269A301 predict microstructures Microstructure ANL M&S gap analysis to predict material Complete - ML20350B550 performance

8 AMT ACTION PLAN PRODUCTS Status Subtask Actions / Deliverables Finalize document incorporating feedback from Regional 2A 50.59 process Complete - ML21200A222 staff regarding the 10 CFR 50.59 process 2B Assessment of regulatory Path forward on guidance development or modification Complete - ML20233A693 guidance Draft AMT Review Guidelines Complete - ML21074A037 2C AMT Guidance Document AM-Laser Powder Bed Fusion - ML21074A040 Draft Guidelines Documents for specific AMTs AM-Laser-Directed Energy Deposition - ML22143A950 Cold Spray - ML22143A950 3A/3B External / Internal Continued communication with NRC staff and external Ongoing as needed Interactions stakeholders for AMT-related activities 3C Knowledge Management Plan Develop Knowledge Management Plan Complete - internal Complete - Public Meeting Summary: ML20357B071 3D Workshop Hold public workshop RIL: Part 1 Part 2 3E Material Information course Training course and course materials First 6 seminars complete - internal

9 2020 NRC AMT WORKSHOP

• The objectives of the workshop were to

• Key Takeaways:

cover topics including:

• AMTs are being incorporated!

• nuclear industry implementation plans

• Use of PM-HIP with EBW for larger

• codes and standards activities nuclear components looks promising,

• research findings but requires larger HIP and EBW capabilities

• qualification & aging management

• AMT technologies evolve quickly,

• regulatory approaches outpacing the qualification and in other industries. licensing process

• Target applications to optimize unique AM characteristics

• SDOs need continual communication to reduce redundant standards development

10 2020 NRC AMT WORKSHOP:

NEXT STEPS Selected Next Steps My Perspective Nuclear industry / NRC: Use data from This is an ongoing process as experience is existing AMT applications to help justify and gained from existing nuclear applications of increase confidence in further applications AMT components (e.g., thimble plugging of AMTs device, channel fastener).

Nuclear industry / NRC: Potential nuclear Non-nuclear applications in relevant service applications of AMTs may benefit from non- conditions (e.g., temperature) are helping to nuclear applications. inform NRC assessments of AMTs DOE AMMT Roadmap and the America Support intelligent, performance-based Makes Roadmap are helping greatly in this qualification framework area.

11 2020 NRC AMT WORKSHOP:

NEXT STEPS Selected Next Steps My Perspective Continue developing technical basis for utilizing these technologies in nuclear ASME activities to develop data packages for applications Code Cases are helping greatly in this area.

Gain ASME acceptance and obtain ASME Code Cases have been and/or are regulatory approval being developed for LPBF, PM-HIP, and DED.

EPRI and DOE efforts are supporting this area.

Continue to evaluate research needs and The NRC to continues to assess AMTs and technology gaps perform gap analyses. Knowledge/data gaps may help identify research needs.

12 2023 MEETING ON NDE OF AM COMPONENTS

• The meeting focused on the state-of-the-

• Key Takeaways:

art of NDE of AM components, as well as

• Integrate NDE with the design and key challenges associated with the use of manufacturing process of AM these technologies. Specific topics components.

included:

• Continue NRC engagement to inform staff

• Ultrasonic testing (phased array, of applicable challenges relevant to the FMC/TFM) adoption of AM components in nuclear

• Process compensated resonance testing plants.

• Qualification

• The final surface condition of AM components is an important consideration

• Structure-property relationships for examinations.

• In-process monitoring

• Standardization of NDE calibration methods and how that applies to the different AM manufacturing processes is needed.

NATIONAL LABORATORIES

• Staff gained a better understanding of AM microstructures and effects on material properties.

Meeting summary: ML23153A010

13 CURRENT NRC AMT ACTIVITIES

• Continue to prepare:

• Technical preparedness

• AMT assessments, NDE of AMT components, data & modeling for qualification

• Products: technical letter reports, technical assessments

• Regulatory preparedness

• Regulatory guidance

• Communications and Knowledge Management

• Internal & external interactions, KM, workshops, staff training

• Reports in review:

• Wire-arc directed energy deposition

• Hybrid manufacturing

• In-process monitoring

14 THE END