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Project description
Third-cycle subject: Engineering Materials Science
The PhD project announced here focuses on phase transformations in metallic materials during powder-based additive manufacturing (AM).
The project is part of a larger Swedish-German collaboration within the Röntgen-Ångström Cluster which aims at developing a sample environment in terms of a miniature AM machine for selected electron beam melting (SEBM). This provides a unique opportunity to study materials’ behavior during SEBM in-situ for the first time using X-rays generated at large-scale infrastructures.
The final AM microstructure is determined by a complex interplay between the alloy characteristics, powder properties and printing parameters. The material is locally melted and solidified multiple times, as new layers are deployed on the underlying layers and is then exposed to cyclic heating and cooling throughout the rest of the printing time. This results in complex time-temperature relations in three dimensions. To understand the behavior of materials during AM, both post-print ex-situ characterization of printed parts and in-situ characterization during the process are needed. In this project these characterization techniques will be utilized to study phase transformation in steels manufactured using SEBM. The increased understanding achieved, will be used to improve computational tools and SEBM process control thus enabling AM materials design.
Supervision: The doctoral student will be placed at the Royal Institute of Technology and supervised by: Greta Lindwall and Peter Hedström
What we offer
Eligibility
To be admitted to postgraduate education (Chapter 7, 39 § Swedish Higher Education Ordinance), the applicant must have basic eligibility in accordance with either of the following:
Suitable background for this position is a degree in materials science, materials physics or related topic.
Selection
The position requires very good knowledge in English, both written and spoken, and interest in international collaborations. Knowledge and experience of advanced characterization methods such as SEM, TEM, XRD and of computational tools such as Thermo-Calc, DICTRA and TC-Prisma are meritorious.
In order to succeed as a doctoral student at KTH you need to be goal oriented and persevering in your work. After the qualification requirements, great emphasis will be placed on personal qualities and personal suitability. During the selection process, candidates will be assessed upon their ability to:
Target degree: Doctoral exam
Information regarding admission and employment
Only those admitted to postgraduate education may be employed as a doctoral student. The total length of employment may not be longer than what corresponds to full-time doctoral education in four years ' time. An employed doctoral student can, to a limited extent (maximum 20%), perform certain tasks within their role, e.g. training and administration. A new position as a doctoral student is for a maximum of one year, and then the employment may be renewed for a maximum of two years at a time.
Union representatives
You will find contact information for union representatives on KTH's website.
Doctoral section (Students’ union on KTH Royal Institute of Technology)
You will find contact information for doctoral section on the section's website.
Application
Apply for the position and admission through KTH's recruitment system. It is the applicant’s responsibility to ensure that the application is complete in accordance with the instructions in the advertisement.
Applications must be received at the last closing date at midnight, CET/CEST (Central European Time/entral European Summer Time).
Applications must include the following elements:
Other information
Gender equality, diversity and zero tolerance against discrimination and harassment are important aspects of KTH's work with quality as well as core values in our organization.
For information about processing of personal data in the recruitment process please read here.
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Disclaimer: In case of discrepancy between the Swedish original and the English translation of the job announcement, the Swedish version takes precedence.
Type of employment | Temporary position |
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Contract type | Full time |
First day of employment | As agreement |
Salary | Monthly salary according to KTH's doctoral student salary agreement |
Number of positions | 1 |
Full-time equivalent | 100% |
City | Stockholm |
County | Stockholms län |
Country | Sweden |
Reference number | M-2020-0716 |
Contact |
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Published | 09.Apr.2020 |
Last application date | 08.May.2020 |