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PhD Scholarship in Design of Metal Powders for 3D Printing

Technical University of Denmark - DTU Mechanical Engineering

Qualification Type: PhD
Location: Lyngby - Denmark
Funding for: UK Students, EU Students, International Students
Funding amount: Not Specified
Hours: Full Time
Placed On: 9th July 2019
Closes: 18th August 2019

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 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.

Application

To apply, please read the full job advertisement at www.career.dtu.dk 

Application deadline: 18 August 2019. 

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. 

   
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