Modelling microstructure evolution, creep deformation and damage in Type 316H stainless steel

Thesis

The current Advanced Gas-cooled Reactors (AGR) in the UK are approaching their design life. The reactor operator, EDF Energy, is seeking to extend their life due to ecological and financial reasons. One challenge to plant life-extension is the accurate prediction of high-temperature deformation and failure of Type 316H stainless steel, used in components of the reactor boiler section. Under the operating conditions of these components (470-650°C; 10-300 MPa), creep and cyclic plasticity al...

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Authors: Petkov, M

• DOI: 10.5287/ora-dod4jd8k2
• Type of award: DPhil
• Level of award: Doctoral
• Awarding institution: University of Oxford
• Language: English
• Keywords: grain-boundary sliding; SCM; deformation; CPFE; creep; structural assessment; cavity nucleation; modelling; creep damage; micromechanics; interface elements; micromechanical
• Subjects: Structural assessment; Micromechanical modelling; Creep damage; High temperature applications; Polycrystals; Advanced Gas-cooled Reactors (AGR); Creep deformation; Inelastic deformation