PhD Candidate
Dep. of Mechanical and Materials Engineering, Nicol Hall, 60 Union Street, Kingston, K7L 3N6, Ontario, Canada
Tel: (613) 533 3236
Email:
sattari[at]me[dot]queensu[dot]ca
Current Research Fields
- Microstructural Characterisation
- Electron Microscopy (SEM and TEM)
- Macro/Micro Texture (neutron diffraction, Electron Backscatter diffraction)
Biography
MSc: Chalmers University of Technology, Göteborg, Sweden
Thesis: Characterisation of the braze-coating interface of brazed IN 718 thermal spray coatings.
BSc: Iran University of Science and Technology (IUST), Tehran, Iran
Current Research
Zirconium Excel alloy (Zr-3.5 Sn-0.8Nb-0.8 Mo) is a candidate material for generation 4 Super Critical CANDU reactors pressure tube. It is a dual phase material, α and β (Figure bellow).
TEM micrograph of Zr Excell Alloy
Compared to current pressure tube material (Zr-2.5 Nb), Excel exhibits better creep properties. The goal of this research is to investigate the microstuctre and texture of Excel pressure tubes in order to find the optimum microstructure for creep resistance at designed temperatures for Super Critical CANDU reactors, i.e. 80 and 400 °C. For this purpose characterisation techniques such as SEM, TEM, EBSD and neutron diffraction will be employed. Creep tests will be run on micro-pressure tubes extruded with the same ratio as actual pressure tubes (i.e. the texture would be the same)
Papers
- “New Method For Life Assessment of 1%Cr-0.5% Mo Low Alloy Steel on the Base of Grain Boundary Creep Cavitations”, Iranian Journal of Materials Science and Engineering, Vol.2, No. 4, July 2005
- “Characterization of Adhesion Strength of HVOF Sprayed IN718 Coating”, Proceedings of the 22nd International Conference on Surface Modification Technologies (SMT22), Trollhättan, Sweden