TY - GEN
T1 - Negligible creep conditions for mod 9CR1MO steel
AU - Riou, Bernard
AU - Escaravage, Claude
AU - Swindeman, Robert W.
AU - Ren, Weiju
AU - Cabrillat, Marie Thérèse
AU - Allais, Lucien
PY - 2006
Y1 - 2006
N2 - Mod 9CrlMo Steel (grade 91) is one of the materials envisaged for the Reactor Pressure Vessel of Very High Temperature Reactors. To avoid the implementation of a surveillance program covering the monitoring of the creep damage throughout the whole life of the reactor, it is recommended to operate the Reactor Pressure Vessel in the negligible creep regime. In this paper, the background of negligible creep criteria available in nuclear Codes is first recalled and their limitations analyzed. Then, guidance for deriving criteria more appropriate for mod 9CrlMo steel is provided. Finally, R&D actions in the U. S. and France to support the new approaches are discussed and recommended.
AB - Mod 9CrlMo Steel (grade 91) is one of the materials envisaged for the Reactor Pressure Vessel of Very High Temperature Reactors. To avoid the implementation of a surveillance program covering the monitoring of the creep damage throughout the whole life of the reactor, it is recommended to operate the Reactor Pressure Vessel in the negligible creep regime. In this paper, the background of negligible creep criteria available in nuclear Codes is first recalled and their limitations analyzed. Then, guidance for deriving criteria more appropriate for mod 9CrlMo steel is provided. Finally, R&D actions in the U. S. and France to support the new approaches are discussed and recommended.
UR - http://www.scopus.com/inward/record.url?scp=33751338558&partnerID=8YFLogxK
U2 - 10.1115/PVP2006-ICPVT-11-93408
DO - 10.1115/PVP2006-ICPVT-11-93408
M3 - Conference contribution
AN - SCOPUS:33751338558
SN - 0791837823
SN - 9780791837825
T3 - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
BT - Proceedings of 2006 ASME Pressure Vessels and Piping Division Conference - ASME PVP2006/ICPVT-11 Conference - Pressure Vessel Technologies for the Global Community
T2 - ASME PVP2006/ICPVT-11 Conference
Y2 - 23 July 2006 through 27 July 2006
ER -