id: NTAxNjQxMyA3

reference: 5016413

documentId: 5016413

connectionPointId: 7

lastModificationDate: 1562589030636

stillingsbetegnelse:
PhD scholarship in Design of Metal Powders for 3D Printing

jobbeskrivelse:

DTU Mechanical Engineering, the Section for Manufacturing Engineering invites applications for a PhD position (3 years) in the field of design of metal powders for 3D printing. The Section for Manufacturing Engineering performs theoretical, numerical, and experimental research in the field of manufacturing engineering. It covers a wide range of manufacturing processes and modelling approaches, metrology at all scales, micro/nano manufacturing, and additive manufacturing. The research is based on a multidisciplinary use of process technology, materials science, solid and fluid mechanics as well as thermodynamics and heat transfer in the analysis, modelling, and development of manufacturing processes.

Additive manufacturing (AM) in the form of 3D printing has attracted much attention in recent years. However, too little focus has been devoted to the metallurgy, size and shape of the powders used in the processes. This project aims to develop new powders, based on virgin as well as recycled materials, with improved performance resulting in printed parts with more uniform and predictive properties, less residual stress and lower susceptibility to cracking than existing ones. The quality of the powders will be characterised and relations to the microstructures and properties of the printed parts will be established.

Responsibilities and tasks

The project is part of a research project abstractJV_titled: 'Design of metal powders for 3D printing - from scrap to resource' which is funded by the Danish Council for Independent Research. The objective of the PhD project is relating the microstructure and properties of printed samples to the physical and chemical characteristics of the atomised powders. Such an analysis is expected to become a break-through as the processing parameters in AM are far from conventional and the work published in literature so far has mainly focussed on effects of the printing process (not the powder). Another important problem to be investigated by the PhD student, is the interaction between microstructural features and solutes/second phase particles. It is particularly important to develop new alloys that are insensitive to the build-up of trace elements that occur over time in recycled steels.

You will be responsible for running-in of an in-house gas atomizer and carry out laboratory experiments with production of gas atomised powders and the subsequent fractioning and characterisation of powders

• You will be in charge of developing laboratory solidification experiments to mimic solidification in atomisation and 3D printing
• You will use electron microscopes, synchrotron X-Ray diffraction and laboratory CT scanning to characterise microstructures of powders and of printed components made from the powders
• You will use thermodynamic modelling software (such as Thermocalc) to support development of optimised powders
• You will work in an international research group at DTU, and you will have to co-operate with university partners in Germany and the UK, as well as researchers and developers in Danish industry.

Qualifications

Candidates should have a two-year master's degree (120 ECTS points) or a similar degree with an academic level equivalent to a two-year master's degree.

Approval and Enrolment

The scholarship for the PhD degree is subject to academic approval, and the candidate will be enrolled in one of the general degree programmes at DTU. For information about our enrolment requirements and the general planning of the PhD study programme, please see the DTU PhD Guide: http://www.dtu.dk/english/Education/PhD/Rules/PhDguide

We offer

DTU is a leading technical university globally recognized for the excellence of its research, education, innovation and scientific advice. We offer a rewarding and challenging job in an international environment. We strive for academic excellence in an environment characterized by collegial respect and academic freedom tempered by responsibility.

Salary and appointment terms

The appointment will be based on the collective agreement with the Danish Confederation of Professional Associations. The allowance will be agreed upon with the relevant union. The period of employment is 3 years.

Your primary workplaces will be DTU Lyngby Campus and DTU Risø Campus. However, it is required that PhD students spend minimum 3 months at a university abroad. There will also be regular, short visits to the Danish partners in the project.

You can read more about career paths at DTU here: http://www.dtu.dk/english/about/job-and-career/working-at-dtu/career-paths

Further information

Further information may be obtained from Associate Professor Niels Skat Tiedje, tel.: +45 4525 4719 or Senior Researcher Tianbo Yu, tel.: +45 4525 4889.

You can read more about Department of Mechanical Engineeringat at www.mek.dtu.dk/english.

Application

Please submit your online application no later than 18 August 2019 (local time). Applications must be submitted as one PDF file containing all materials to be given consideration. To apply, please open the link "Apply online", fill out the online application form, and attach all your materials in English in one PDF file. The file must include:

• A letter motivating the application (cover letter)
• Curriculum vitae
• Grade transcripts and BSc/MSc diploma
• Excel sheet with translation of grades to the Danish grading system (see guidelines and Excel spreadsheet here) http://www.dtu.dk/english/Education/phd/Applicant/Pre_acceptance-1-

Candidates may apply prior to obtaining their master's degree but cannot begin before having received it.

Applications and enclosures received after the deadline will not be considered.

All interested candidates irrespective of age, gender, race, disability, religion or ethnic background are encouraged to apply.

DTU Mechanical Engineering covers the fundamental engineering disciplines within Solid mechanics, Fluid mechanics, Coastal and Maritime Engineering, Energy systems and energy conversion, Materials and Surface Engineering, Manufacturing Engineering, Engineering design and Product development. The department has a scientific staff of about 145 persons, 100 Ph.D. students and a technical/administrative support staff of more than 90 persons.

DTU is a technical university providing internationally leading research, education, innovation and scientific advice. Our staff of 6,000 advance science and technology to create innovative solutions that meet the demands of society, and our 11,200 students are being educated to address the technological challenges of the future. DTU is an independent academic university collaborating globally with business, industry, government and public agencies.



numberOfPosts: 1

jobCategoriesCodes_0: http://data.europa.eu/esco/isco/C2310

abstractJV_contact_0: Please apply using one of the specified channels

positionTypeCode: directhire

contractTypeCodes_0: fulltime

Arbejdsgiver Navn: Danmarks Tekniske Universitet

source: DK-STAR