Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.505354
Title: Deformation mechanisms and inter-granular stresses in Zircaloy-4 and Zr-2.5%Nb
Author: Zanellato, Olivier
Awarding Body: The Open University
Current Institution: Open University
Date of Award: 2009
Availability of Full Text:
Access from EThOS:
Abstract:
Zirconium alloys have interesting properties for structural applications in the core of a nuclear reactor: they are transparent to neutrons and have good mechanical and corrosion properties. Zircaloy-4 is used for tube cladding or pressure vessels while the main application of Zr2.5%Nb is pressure tubes. However the crystal structure of the dominant phase at room temperature is hexagonal close packed (hep) and shows a very strong thermo-mechanical anisotropy that can affect the deformation behaviour of a polycrystal aggregate and give rise to intergranular stresses. It is particularly important to understand the deformation mechanisms at the microscopic length-scale both for processing optimisation and for service life predictions and improvements.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.505354  DOI: Not available
Share: