Location
Sheffield, AL, United States
Posted on
Mar 11, 2022
Profile
PhD in High Entropy Alloy Coatings for Corrosion Protection of Automotive Stamped Steel
University of Sheffield
- Department of Materials
Qualification Type:
PhD
Location:
Sheffield
Funding for:
UK Students, EU Students, International Students
Funding amount:
£19,312 per annum
Hours:
Full Time
Placed On:
11th March 2022
Closes:
31st March 2022
Supervisors:
Dr Adrian Leyland, Dr Kathy Christofidou, Prof Russell Goodall
Collaborator:
Volkswagen
Based at
**MEMBERS ONLY**SIGN UP NOW***.
Open to:
Candidate with a 2.1 or 1
st
class degree in a STEM discipline
This project is based at the Department of Materials at **MEMBERS ONLY**SIGN UP NOW***., and is sponsored by Volkswagen. We are seeking a candidate with a 2.1 or 1
st
class degree in a STEM discipline.
In the automotive industry, hot stamping of sheet steel is a vital process for the efficient production of shaped parts. Modern steels for this purpose have been developed to have high strength through heat treatment, as this allows thinner sheet, and reduced mass, improving the efficiency of cars. Steel sheet parts necessitate coating protection to allow for improved corrosion resistance to extend part longevity. Traditionally zinc coatings have been the coating of choice for automotive parts, however, they are not compatible with the heat treatments necessary for the optimisation of the steel strength, and new coating materials to protect the stamped sheet from corrosion are vital.
New alloys of the High Entropy Alloy type (systems where there are five or more elements combined, at similar levels of concentration, such that there is no easily identifiable principal element) have the potential to address this need. They open up an enormously wide compositional design space, allowing a greater range of adjustments of properties to potentially be made than in more conventional systems. Examples of such alloys have been shown to have good corrosion resistance in a variety of media, excellent mechanical properties, and adjustable melting characteristics, all of which would be highly desirable in this application.
In this project, we will work with VW Group Innovation to develop and validate novel coating materials for this purpose. We will use Machine Learning techniques developed in our work to aid in the design of new alloys, which will be experimentally deposited as coatings. We will then investigate the phases and microstructure of the materials, and evaluate the behaviour on exposure to aqueous corrosion and abrasive wear conditions. Promising systems will be evaluated on automotive steels in the process at VW’s site in Wolfsberg, Germany, and be further developed for series application.
The Centre for Doctoral Training in Advanced Metallic Systems is a partnership between industry and the Universities of Sheffield, Manchester and I-Form Advanced Manufacturing Centre, Dublin. CDT students undertake a 4-year doctorate with an in-depth compulsory technical and professional skills training programme. Please review our training programme, application process and full entry requirements at ****Informal enquires about the project are welcomed, either to **** to ****
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