Xuewei Li

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Xuewei Li

Department of Materials 
University of Oxford 
Parks Road 
Oxford OX1 3PH
UK

Email: xuewei.li@materials.ox.ac.uk
Tel: +44 1865 27###

Xuewei project concerns the precipitation and dissolution of hydrides in zirconium based alloys.  This is currently poorly understood but technologically important. During the transformation from hydrogen in solid solution to the hydride phase there is a considerable volume expansion. This project will explore the links between hydride formation sites, hysteresis between temperatures for precipitation and dissolution, the stress field and local plasticity induced by the transformation strain and the precipitation morphology. The following techniques will be used: high resolution EBSD, digital image correlation of SEM images, in situ thermal cycling, finite element based-crystal plasticity simulations.