Career development
25/08/2019

PhD Studentship in Production Technology – Specializing in Advanced Processing and Characterization of Duplex Stainless Steels – Welding, HIP, and Additive Manufacturing (ref nr 2019/153

About the research Center


Högskolan Väst, Institutionen för ingenjörsvetenskap

Work Integrated Learning (WIL) is University West’s overarching profile and basic principle applied to learning, the exchange of ideas, and educational development. The government has assigned the distinguished task of developing WIL to University West. Work integrated learning in education and research develops new, relevant and advanced knowledge both within the academy and among its partners, which also benefits society in general. University West offers a wide variety of study programs, has a good number of applicants and the students show a high entry rate on the labor market. The main research environments at University West are Production technology, Learning in and for the new working life and Child and youth studies and is conducted in collaboration with the surrounding society. Campus is centrally located in Trollhättan with about 15,000 students and 625 employees.



Details of the offer

Efficient and successful production and joining of duplex stainless steels requires precise control of processes and in depth understanding of relations between composition, processing thermal cycles and resulting microstructures as these control properties. This is true both for steel production using conventional melting, rolling and heat treatment as well as component production with powder metallurgy using hot isostatic pressing or powder based additive manufacturing (AM). Joining by welding or building components using wire arc additive manufacturing (WAAM) adds to complexity by introducing local variations in thermal cycles resulting in an inhomogeneous microstructure making control and prediction of microstructures and properties even more complex.

In the welding technology group, there are a number of ongoing and recent projects dealing with both production and welding of duplex stainless steels. Techniques to control and monitor thermal cycles have been developed which together with instruments and software for evaluation and modelling of thermal cycles and microstructures provide unique possibilities to study these versatile but complex materials. With access to a state-of-the-art SEM-EBSD, Gleeble Thermomechanical testing equipment, Arc Heat Treatment equipment, hardness mapping facilities as well as relevant software for modelling and thermodynamic calculations it is possible to both apply well-controlled desired thermal cycles and evaluate resulting microstructures in detail at a fine scale.

Problems and materials would initially be selected from ongoing projects on duplex stainless steels, AM components and weld metals. Focus will be mainly on highly alloyed grades as these are more sensitive to variations in thermal cycles, but complementary studies should also be made on other grades.

Potential research questions include:

  • effects of multiple thermal cycles in WAAM,
  • early stages of precipitation and phase separation and effects of differences in composition between welding consumables and base material,
  • loss of nitrogen and how this depends on process and material grade and effects on phase balance,
  • influence of crystallographic features and processing conditions on material response to thermal cycles.

PhD degree program: Production Technology


Job description: The research program includes, in addition to participation in third-cycle courses and other activities, implementation of an independent thesis work. Doctoral students shall primarily devote themselves to their own education. A doctoral student may, however, be engaged to a limited extent in education, research and administration, mainly within Production Technology. Such duties, before a doctorate has been conferred, may not occupy more than 20 per cent of full-time working hours. (Higher Education Ordinance (SFS 1993:100) Chapter 5 section 2).



Profile expected

The basic eligibility requirements for doctoral programs as set out in the Higher Education Ordinance are as follows:

  • A degree at master’s level,
  • completed courses totaling at least 240 university credits of which a minimum of 60 at master’s level or,
  • substantially equivalent knowledge gained in some other way whether in Sweden or abroad.

To fulfil the special eligibility requirements for a doctoral degree in Production Technology, a student must hold a degree at master’s level in a subject relevant to the doctoral degree subject. This degree may be in Production Technology or some related discipline. The eligibility requirements may be fulfilled by studies in Sweden or abroad.

For more information please read 3.1 and 3.2 in General syllabus for the third-cycle programme in Production Technology, Ref. No 2015/1343 B 25: https://www.hv.se/en/research/research-education/courses/production-technology/

Selection: The basic factor for selection from among qualified applicants is the ability to profit from such a program. For more information please read 3.3 in General syllabus for the third-cycle programme in Technology in Production Technology, Ref. No 2015/1343 B 25.

To be successful in this project the applicant should be highly motivated, have an accurate way of working, and have good communicative and collaborative skills. The applicant should have a strong aptitude for analysis and problem solving of physical problems that relates to industry.

The selection process comprises different stages. In addition to the evaluation of the qualification requirements, interviews, referencing, proofreading or individual tasks might be included to assess the candidates.



Contact to the application



Applications are to be submitted electronically through the University West web-based recruitment tool, MyNetwork. Go to https://www.hv.se/en/meet-university-west/job-opportunities/.

The application must include:

  • CV/Personal qualifications
  • Personal letter containing: - Interest in the research topic. - Previous experience regarding the proposed research topic and its research methods. - Motive to pursue Doctoral studies.
  • Degree project of second level of higher education
  • Degree certificate of first and second level of higher education
  • Other documents which the applicant wishes to invoke

Approved written languages regarding papers, diplomas, grades and other relevant documents are the Scandinavian languages and/or English, or translations into any of those languages. Attach the original when submitting translated documents.

The application should reach University West no later than 2019-08-25

Contact
  • Leif Karlsson, +46520-22 32 81, leif.karlsson@hv.se
  • Vahid Hosseini, +46520-22 33 73, vahid.hosseini@hv.se
  • Joel Andersson, +46520-223338, joel.andersson@hv.se
  • Chamara Kumara, +46520-22 33 59, chamara.kumara@hv.se