Thermodynamic models of low-temperature Mn–Ni–Si precipitation in reactor pressure vessel steels

2014 ◽  
Vol 4 (3) ◽  
pp. 101-105 ◽  
Author(s):  
Wei Xiong ◽  
Huibin Ke ◽  
Ramanathan Krishnamurthy ◽  
Peter Wells ◽  
Leland Barnard ◽  
...  
Keyword(s):  
Low Temperature ◽  
Pressure Vessel ◽  
Reactor Pressure Vessel ◽  
Thermodynamic Models ◽  
Pressure Vessel Steels ◽  
Image Position ◽  
Reactor Pressure

Abstract

Failure Probability Assessment for a Boiling Water Reactor Pressure Vessel Under Low Temperature Over-Pressure Event

2012 ◽  
Author(s):  
Hsoung-Wei Chou ◽  
Chin-Cheng Huang ◽  
Bo-Yi Chen ◽  
Hsien-Chou Lin ◽  
Ru-Feng Liu
Keyword(s):  
Low Temperature ◽  
Failure Probability ◽  
Pressure Vessel ◽  
Fracture Probability ◽  
Pressure Vessels ◽  
Reactor Pressure Vessel ◽  
Boiling Water ◽  
Boiling Water Reactor ◽  
Water Reactor ◽  
Reactor Pressure

The fracture probability of a boiling water reactor pressure vessel for a domestic nuclear power plant in Taiwan has been numerically analyzed using an advanced version of ORNL’s FAVOR code. First, a model of the vessel beltline region, which includes all shell welds and plates, is built for the FAVOR code based on the plant specific parameters of the reactor pressure vessel. Then, a novel flaw model which describes the flaw types of surface breaking flaws, embedded weld flaws and embedded plate flaws are simulated along both inner and outer vessel walls. When conducting the fracture probability analyses, a transient low temperature over-pressure event, which has previously been shown to be the most severe challenge to the integrity of boiling water reactor pressure vessels, is considered as the loading condition. It is found that the fracture occurs in the fusion-line area of axial welds, but with only an insignificant failure probability. The low through-wall cracking frequency indicates that the analyzed reactor pressure vessel maintains sufficient stability until either the end-of-license or for doubling of the present license of operation.

scholarly journals 3-D Atom Probe Observation of Solute Atom Clusters in Reactor Pressure Vessel Steels

Materia Japan ◽  
2008 ◽  
Vol 47 (12) ◽  
pp. 619-619
Author(s):  
Kenji Nishida ◽  
Kenji Dohi ◽  
Akiyoshi Nomoto ◽  
Naoki Soneda
Keyword(s):  
Pressure Vessel ◽  
Solute Atom ◽  
Atom Probe ◽  
Reactor Pressure Vessel ◽  
Atom Clusters ◽  
Pressure Vessel Steels ◽  
Reactor Pressure

Study of Lüders phenomena in reactor pressure vessel steels

2013 ◽  
Vol 588 ◽  
pp. 151-166 ◽  
Author(s):  
D.W. Beardsmore ◽  
J. Quinta da Fonseca ◽  
J. Romero ◽  
C.A. English ◽  
S.R. Ortner ◽  
...  
Keyword(s):  
Pressure Vessel ◽  
Reactor Pressure Vessel ◽  
Pressure Vessel Steels ◽  
Reactor Pressure
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