[Federal Register Volume 68, Number 6 (Thursday, January 9, 2003)]
[Notices]
[Pages 1213-1214]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 03-375]


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NUCLEAR REGULATORY COMMISSION


Nickel-Base Alloy, Vessel Head Penetration Conference

AGENCY: Nuclear Regulatory Commission.

ACTION: Notice of conference.

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SUMMARY: NRC Research will sponsor a three-day conference addressing 
issues of flaw detection and crack growth rate modeling and 
applications for nickel-base alloys used as vessel head penetrations 
(VHP) and other pressure boundary attachments. Participants will 
include a domestic and an international audience consisting of reactor 
operators, regulatory personnel, and researchers involved in the 
solution of the structural integrity issues arising from crack growth 
and leakage through Alloy 600 components, cladding and associated 
attachment welds. The conference will be structured to include 
presentations by industry, regulatory and laboratory representatives, 
as well as open discussion of the critical issues. There are no 
restrictions on attendance at this conference.

DATES: March 24-26, 2003.

ADDRESSES: Marriot Gaithersburg/Washingtonian Center, 9751 
Washingtonian Boulevard, Gaithersburg, MD 20878.

FOR FURTHER INFORMATION CONTACT: Ken Natesan, Argonne National 
Laboratory, Telephone: (630) 252-5103, e-mail: [email protected], or Bill 
Cullen, Mail Stop T-10 E10, U.S. Nuclear Regulatory Commission, 
Washington, DC 20555-0001, Telephone: (301) 415-6754, e-mail: 
[email protected]. Conference information will be posted on the NRC Web site: 
http://www.nrc.gov, under the public meetings section of both the

[[Page 1214]]

Alloy 600 and Vessel Head Degradation subheadings.

SUPPLEMENTARY INFORMATION: The proceedings will be published as 
Conference Proceedings of the Nuclear Regulatory Commission (NUREG/CP-
series). Additional details, including lists of session chairpersons, 
and the contributed papers will be published on the NRC Web site: 
http://www.nrc.gov under the public meetings section of both the Alloy 
600 and Vessel Head Degradation subheadings. Presentations at the 
conference will encompass vessel penetration cracking issues for all 
primary boundary locations, including upper head, lower head and 
pressurizer penetrations, and nickel-base alloy, or mixed metal welds 
used to join pressure boundary components.
    The conference will consist of six sessions, chaired by domestic 
and international representatives of regulatory agencies, industry, and 
research organizations. Each session scheduled below includes invited 
and contributed papers on the following specific topics:

Monday, March 24, 2003--8:30 a.m.-12 Noon

    Topics to be presented include flaw inspection procedures, 
descriptions of NDE results, and user experience with component mock-
ups or other NDE training and certification procedures; visual 
inspection tools, programs underway to improve performance.

Monday, March 24, 2003--1:30-5 p.m.

    Topics to be presented include descriptions of crack growth rate 
(CGR) experiments, interpretation and analysis of CGR data for Alloys 
600, 690, 182/82 and 152/52.

Tuesday, March 25, 2003--8:30 a.m.-12 Noon

    Topics to be presented include probabilistic fracture mechanics 
analysis of pressure boundary structural elements, including 
experimental or analytical stress analyses for axial and 
circumferential cracking of VHPs.

Tuesday, March 25, 2003--1:30-5 p.m.

    Topics to be presented include programs that address the mitigation 
of the cracking or other corrective actions, especially repair 
procedures; future materials and fabrication techniques.

Wednesday, March 26, 2003--8:30 a.m.-12 Noon

    Topics to be presented include application of these results in 
operating plants, including follow-on inspections of repaired 
components, and evaluations of success or failure of these methods.

Wednesday, March 26, 2003--1:30-5 p.m.

    Wrap up and summaries by session chairs
    The conference is open to the public, and there is no registration 
fee. Those who wish to attend are encouraged to contact Ken Natesan 
([email protected]) or Bill Cullen ([email protected]). Further information, 
including forms for conference registration, and a final list of 
presentations, will be posted on the NRC website. Those attendees 
needing special services, such as for the hearing impaired, are 
requested to notify the conference organizers as far in advance as 
reasonably possible.

    Dated at Rockville, Maryland, this 3rd day of January, 2003.


    For the Nuclear Regulatory Commission.
Nilesh C. Chokshi,
Acting Director, Division of Engineering Technology, Office of Nuclear 
Regulatory Research.
[FR Doc. 03-375 Filed 1-8-03; 8:45 am]
BILLING CODE 7590-01-P