KTH Royal Institute of Technology

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:

  • passed a degree at advanced level,
  • completed course requirements of at least 240 higher education credits, of which at least 60 higher education credits at advanced level, or
  • in any other way acquired within or outside the country acquired essentially equivalent knowledge.
  • Requirements for English equivalent to English B/6, read more here.

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:

  • independently pursue his or her work
  • collaborate with others,
  • have a professional approach and
  • analyse and work with complex issues.

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:

  • CV including your relevant professional experience and knowledge.
  • Application letter with a brief description of why you want to pursue research studies, about what your academic interests are and how they relate to your previous studies and future goals. (Maximum 2 pages long)
  • Copies of diplomas and grades from previous university studies and certificates of fulfilled language requirements (see above). Translations into English or Swedish if the original document is not issued in one of these languages.
  • Representative publications or technical reports. For longer documents, please provide a summary (abstract) and a web link to the full text.

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.

We firmly decline all contact with staffing and recruitment agencies and job ad salespersons.

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
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
  • Greta Lindwall, Assistant Professor, +46 8-790 83 25, gretal@kth.se
  • Peter Hedström, Professor, +46 8-790 62 17, pheds@kth.se
  • Sandra Strandberg, HR, +46 8-790 70 53, sanst@kth.se
Published 09.Apr.2020
Last application date 08.May.2020 11:59 PM CEST

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