TY - THES
T1 - Multi-Scale Modelling of Defects in Austenitic Steels
AU - Poncé, Samuel
A2 - Vankeerberghen, Marc
N1 - Score = 2
PY - 2010/6/29
Y1 - 2010/6/29
N2 - The in-core components of light water reactors surround the fuel elements and ensure their positioning and cooling, by supporting them and guiding the coolant
ow. They are exposed to intense neutron irradiation, mechanical and thermal stresses and the corrosive action of the high temperature water coolant. This exposure may lead to several degradation mechanisms, limiting the useful life time of the in-core components. Although these components, differently from the reactor pressure vessel, can be replaced, a deeper fundamental understanding of these degradation mechanisms is desirable in order to minimize costly replacement campaigns. In this work an atomistic study regarding the stacking fault energy and dislocation behaviour in austenitic binary model alloys is performed. Such simulations contribute to a better understanding to the mechanisms governing hardening and embrittlement in such steels.
AB - The in-core components of light water reactors surround the fuel elements and ensure their positioning and cooling, by supporting them and guiding the coolant
ow. They are exposed to intense neutron irradiation, mechanical and thermal stresses and the corrosive action of the high temperature water coolant. This exposure may lead to several degradation mechanisms, limiting the useful life time of the in-core components. Although these components, differently from the reactor pressure vessel, can be replaced, a deeper fundamental understanding of these degradation mechanisms is desirable in order to minimize costly replacement campaigns. In this work an atomistic study regarding the stacking fault energy and dislocation behaviour in austenitic binary model alloys is performed. Such simulations contribute to a better understanding to the mechanisms governing hardening and embrittlement in such steels.
KW - Atomistic modelling
KW - Austenitic steels
KW - Stacking fault energy
KW - Dislocations
UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_106944
M3 - Master's thesis
PB - UCL - Université Catholique de Louvain
CY - Louvain la Neuve, Belgium
ER -