PhD Studentship: An investigation into the Interface Material Layer Created during Linear Friction Welding of Titanium Alloys.
Overview
The University of Nottingham is inviting applications for a PhD studentship on the interface material layer created during linear friction welding of titanium alloys. Attaching blades to discs by solid-state joining is a key factor in achieving cost-effective, high-performance, low-weight fan and compressor stages in aero-engines. Linear friction welding is an established process used by Rolls-Royce to make titanium blisks across a range of engines, and the company's strategy requires extending it to a wider range of titanium alloys, including dissimilar joints. Joint quality in more advanced alloys and dissimilar joints depends on consistent flash extrusion and flow from the interface contact layer, which is linked to the transient behaviour of the process, process stability and the interaction between the part and the tooling.
The project will develop a fundamental understanding of the thermo-mechanical effects and material flow within this high strain-rate, high-temperature contact layer, and how they connect to key process variables and machine and tooling behaviour. The work uses computational simulation supported by experiments on test welds and novel material characterisation methods. The studentship arises from a long-standing research relationship between Nottingham and Rolls-Royce plc, and will be hosted by Nottingham's University Technology Centre in gas turbine transmission systems, within a community of about 20 PhD students.
Who can apply
The successful candidate will have a first-class or upper second-class honours degree in mechanical engineering or a related subject. Because of funding restrictions, the position is available only to UK or EU candidates.
What you get
This CASE studentship attracts a stipend of £18,000 per annum for four years, and the advertised pay figure is £25,000 per annum.
How to apply
Informal enquiries can be made to Dr James Rouse. Applications are accepted until the post is filled.
Key dates
The project is available from 1 October 2026, and the listed closing date is 18 December 2026.