Overview
Applications are invited for a PhD CASE studentship funded jointly by the EPSRC and TWI Ltd. The studentship fully covers University tuition fees and provides a tax-free bursary of upto £19,290 per annum.
Project
Welding is the most economical and effective way to join metals permanently and it is a vital component of our manufacturing economy. In subsea oil and gas systems, high strength steel linepipes are welded to low alloy steel hubs using nickel alloy filler materials. After welding, post-weld heat treatment (PWHT) is carried out to stress relieve the welded joints. Whilst the vast majority of subsea joints have given successful service, a small number of in-service failures have caused significant consequences.
To investigate the mechanism of failure of such welded joints in subsea applications, this project will use a combined experimental and modelling approach to study the local chemistry change and microstructure evolution at the weld joints in subsea oil and gas systems. Through the combined approach, a detailed description of element diffusion across the welding interface will be provided and a better understanding of the failure mechanisms can be obtained. Models will be developed to assess the integrity of practical welded components. At the end of the project, predictions will be made to optimise chemistry of welding materials and the PWHT routes to reduce the susceptibility of welded joints to in-service failure.
The PhD student will be based in the Engineering Department and will benefit from opportunities to work closely with a research consortium on a major European seventh framework programme (FP7), MintWeld, on modeling, characterization and testing of welds. The student would become part of TWI's Metallurgy, Corrosion and Surfacing Technology Group and will have opportunity to work at TWI (in Cambridge) for extended periods.
Financial Support
UK students (including non-UK EU nationals who have been continuously resident in the UK for the last three years) will receive tuition fees and a stipend of upto £19,290 per annum (including the industrial contribution) for the 3.5-year duration of the project. Other EU students are only eligible for fees and the industrial contribution of £6,000 per annum. Non-EU students are not eligible for funding. The position is available from April 2010.
Application Requirements
•Applicants should have a good honours degree (either first class or upper second class) or hold an MSc in Materials Science, or a relevant Engineering or Physical Science discipline.
•For general admission information, please email Mrs Michelle Pryce (mc41@le.ac.uk); for informal inquires, interested applicants are also encouraged to contact Dr. Dong (email: hd38@le.ac.uk).
•For an application form please visit:
http://www.le.ac.uk/graduateoffice/application_form.pdf .
Please send your completed application form with two academic references to Mrs Michelle Pryce, Department of Engineering, University of Leicester, Leicester, LE1 7RH, UK.
Closing Date for applications: 26 February 2010.
Please kindly mention Scholarization.blogspot.com when applying for this opportunity
Applications are invited for a PhD CASE studentship funded jointly by the EPSRC and TWI Ltd. The studentship fully covers University tuition fees and provides a tax-free bursary of upto £19,290 per annum.
Project
Welding is the most economical and effective way to join metals permanently and it is a vital component of our manufacturing economy. In subsea oil and gas systems, high strength steel linepipes are welded to low alloy steel hubs using nickel alloy filler materials. After welding, post-weld heat treatment (PWHT) is carried out to stress relieve the welded joints. Whilst the vast majority of subsea joints have given successful service, a small number of in-service failures have caused significant consequences.
To investigate the mechanism of failure of such welded joints in subsea applications, this project will use a combined experimental and modelling approach to study the local chemistry change and microstructure evolution at the weld joints in subsea oil and gas systems. Through the combined approach, a detailed description of element diffusion across the welding interface will be provided and a better understanding of the failure mechanisms can be obtained. Models will be developed to assess the integrity of practical welded components. At the end of the project, predictions will be made to optimise chemistry of welding materials and the PWHT routes to reduce the susceptibility of welded joints to in-service failure.
The PhD student will be based in the Engineering Department and will benefit from opportunities to work closely with a research consortium on a major European seventh framework programme (FP7), MintWeld, on modeling, characterization and testing of welds. The student would become part of TWI's Metallurgy, Corrosion and Surfacing Technology Group and will have opportunity to work at TWI (in Cambridge) for extended periods.
Financial Support
UK students (including non-UK EU nationals who have been continuously resident in the UK for the last three years) will receive tuition fees and a stipend of upto £19,290 per annum (including the industrial contribution) for the 3.5-year duration of the project. Other EU students are only eligible for fees and the industrial contribution of £6,000 per annum. Non-EU students are not eligible for funding. The position is available from April 2010.
Application Requirements
•Applicants should have a good honours degree (either first class or upper second class) or hold an MSc in Materials Science, or a relevant Engineering or Physical Science discipline.
•For general admission information, please email Mrs Michelle Pryce (mc41@le.ac.uk); for informal inquires, interested applicants are also encouraged to contact Dr. Dong (email: hd38@le.ac.uk).
•For an application form please visit:
http://www.le.ac.uk/graduateoffice/application_form.pdf .
Please send your completed application form with two academic references to Mrs Michelle Pryce, Department of Engineering, University of Leicester, Leicester, LE1 7RH, UK.
Closing Date for applications: 26 February 2010.
Please kindly mention Scholarization.blogspot.com when applying for this opportunity
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