Fully Funded Industrial CASE PhD Studentship with The Welding Institute (TWI)
Cold Spray Deposition of Precipitation-Hardenable Aluminium Alloys for Structural Repairs
Applications are invited from suitably qualified graduates for a fully funded PhD studentship within the top-rated Materials Research Group in the UK. In the latest Research Excellence Framework (REF 2014) the Faculty ranked 3rd in the General Engineering Panel, with 89% of its research output classified as world leading or internationally excellent in quality.
This project is part funded by The Welding Institute (TWI) through an industrial CASE award. TWI has recently established a state-of-the-art postgraduate engineering facility (NSIRC) near Cambridge, where the student will be supported and mentored by TWI’s Surface Engineering section.
The PhD Project Magnesium alloys are widely used in the aerospace industry for the good strength to weight ratio; however, Mg alloy components can suffer damage in service due to corrosion and/or wear. Over the past ten years, significant research investment globally has led to cold spray technology being approved for use as a repair technique for the dimensional (non-load bearing) restoration of Mg alloy components.
In cold spray a fine metallic powder (typically <30 µm) is injected into a convergent-divergent nozzle where it is accelerated to speeds of up to 1200 m/s towards a substrate. High pressure, high temperature helium or nitrogen is used as the accelerating gas. The particles deform plastically upon impact with the substrate to form a coating or deposit. The bonding occurs in the solid state and below the melting temperature of the material. NSIRC has a new state-of-the-art cold spray system which will be used in this project.
The overall aim of this project is to develop cold spray powders and process parameters to deposit precipitation-hardenable Al alloys for structural repair applications. Post-deposition techniques such as heat treatment, laser surface melting, electron beam processing and friction stir welding may also be explored to consolidate porosity and improve inter-particle bonding.
The student must have at least the equivalent of a UK 1st or 2.1 class degree in materials engineering, mechanical engineering and/or manufacturing engineering. Applications are also welcome from graduates with a physics or chemistry degree. The student must be proficient in both written and spoken English, possessing excellent presentation and communication skills. This is an experimental research project and the student must be proficient at practical laboratory work. The student is expected to spend part of the PhD at the TWI NSIRC campus near Cambridge, in line with the industrial CASE arrangement. This studentship is only available to Home /EU candidates.
Applications, with a detailed CV and a cover letter, together with the names and addresses of two referees, should be sent directly to Dr. Tanvir Hussain ([email protected]