Engineering: Fully Funded MSc by Research at Swansea: Super Duplex Stainless Steels
- Full cost of UK tuition fees, plus a stipend
- 5 April 2021
Engineering: Fully Funded M2A MSc by Research Scholarship: Super Duplex Stainless Steels- The Influence of copper and tungsten additions on passivity and pitting corrosion resistance
Start date: October 2021
Academic supervisor: Dr Natalie Wint
Industry supervisor: Mr Rodney Rice, CEng
Sponsoring company: Langley Alloys Ltd
Super duplex stainless steels (SDSS) offer an appealing combination of properties, providing superior levels of strength and corrosion resistance than more heavily-alloyed (and expensive) alternatives.
Langley Alloys developed the first super duplex alloy, Ferralium 255 (S32550) in 1967. Since then, S32760 (developed by Mather & Platt) and S32750 (developed by Sandvik) have been developed. Although all are based on a 25 wt.% chromium composition, there are subtle variations in composition – predominantly differences in Cu and W, claimed to influence pitting corrosion resistance.
The influence of both Cu and W additions on corrosion performance has been studied by numerous groups. However, the results are not consistent and vary significantly with choice of electrolyte/environmental conditions. This means that a fundamental understanding of the mechanisms by which these SDSS afford corrosion resistance is still yet to be determined.
The successful candidate will work as part of the leading corrosion group at Swansea University. The project will utilise advanced techniques such as SVET and time-lapse microscopy as well as more conventional electrochemical methods to;
- Gain greater insight into the passivation phenomenon from Cu (and W) additions in SDSS
- Identify conditions under which chosen alloy(s) provide enhanced performance
- Seek to identify optimum alloy additions based upon insight gained of passivation phenomenon
A key outcome of the project will be the ability to articulate not only why Cu and W additions are important to the corrosion resistance of each alloy, but also how they achieve that different performance.
The results will be used to support technical marketing of the products, informing alloy selection for commercial projects. It will also be used to direct future alloy developments that aim to enhance corrosion performance.
We welcome applications from candidates with a degree (minimum level 2:1) in Materials Science and Engineering, but will accept other physical sciences disciplines (Engineering, Physics, Chemistry), or equivalent relevant experience that would enable the candidate to fulfil the role.
We would normally expect candidates to have met the University’s English Language requirements (e.g. IELTS 6.5 overall with 5.5+ in each component) by point of application.
Due to funding restrictions, this scholarship is not open to ‘International’ candidates.
The scholarship covers the full cost of UK tuition fees, plus a tax free stipend of £12,500 for a period of one year.
Please visit our website for more information.
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