Embrittlement Problems of Metal Structures of Nuclear Power Plants
- Technical University of Sofia, 8, Kliment Ohridski Str., 1000 Sofia (Bulgaria)
- Institute of Electronics, Bulgarian Academy of Sciences, 72 Tzarigradsko chausse, 1784 Sofia (Bulgaria)
This paper reports result of the reconstitution of the Cv-type specimens from reactor pressure vessel steel with electron beam welding. Weldability of pressure vessel steel by electron beam welding was investigated in accordance EN ISO 13919-1 standard. There were made investigations of structural changes of metal in welds and heat affected zones to determine influence of welding thermal cycle.(microstructural analysis and microhardness testing of the welds) The welds were inspected using nondestructive testing techniques to determine the quality of the joints. Establishing the optimal reconstitution parameters of electron beam welding process Charpy impact tests show good agreement between original and electron beam reconstituted specimens. The temperature of ductile to brittle transition has been studied. (authors)
- Research Organization:
- American Nuclear Society, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
- OSTI ID:
- 21021083
- Resource Relation:
- Conference: 2006 International congress on advances in nuclear power plants - ICAPP'06, Reno - Nevada (United States), 4-8 Jun 2006; Other Information: Country of input: France; 9 refs; Related Information: In: Proceedings of the 2006 international congress on advances in nuclear power plants - ICAPP'06, 2734 pages.
- Country of Publication:
- United States
- Language:
- English
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