PhD scholarship in 4D Characterization of Multi-Layered Metals

torsdag 15 okt 20

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Frist 30. november 2020
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DTU, Department of Mechanical Engineering, the Section for Manufacturing Engineering invites applications for a PhD position (3 years) in the field of 4D characterization of multi-layered metals. 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.

Multi-layered metals are a class of meta-materials that offer the opportunity to design metal systems with otherwise unattainable combinations of properties, for example high strength combined with fracture toughness and corrosion resistance. The different materials in a multilayer structure give rise to phenomena not found in conventional single-phase metals. Examples are (i) mechanical and chemical interactions between the phases, where cracking and de-bonding can be detrimental, (ii) rough interfaces and (iii) the formation and evolution of elastic/plastic stresses during loading, where local stress concentrations can cause premature failure during service.

Responsibilities and tasks
The project is part of an ERC advanced grant titled “Metal Microstructures in Four Dimensions” funded by the European Research Council. The overall aims of the grant are (i) developing a universal laboratory based 4D X-ray microscope with potentials in the broad field of materials science and beyond and (ii) advancing metals research by quantifying local microstructural variations using the new 4D tool and by including effects hereof in the understanding and modelling of industrially relevant metals.

The objective of the PhD project is to explore, analyse, and quantify local microstructural variations on appropriate length scales and employ these variations to understand the subsequent microstructural evolution during subsequent deformation and annealing. Two multi-layer systems will be studied—Ti/Ti multilayers and Ti/Al multilayers. The multi-layered metals will be produced by hot compression (in collaboration with Nanjing Tech University) and selective laser melting, in both cases with a layer thickness in the order of 100 μm suitable for characterization using our 4D X-ray microscope. 

  • Are you interested in detailed characterization and analysis of metal microstructures and in achieving new critical information on hither-to unknown mechanism(s), perhaps you are our new PhD student.
  • Your work will involve 3D and 4D measurements using both laboratory and synchrotron X-rays, electron microscopy, quantification of local microstructural variations.
  • You will also work on metal processing and mechanical testing.
  • You will engage in correlation of microstructure with mechanical properties in multi-layered metals, including phase field simulations.

You will work in close collaboration with a group of senior scientists, technicians as well as Post Docs and PhDs all engaged in the ERC project “Metal Microstructures in Four Dimensions”. A 3-6 month foreign stay at KU Leuven to perform phase field simulations will be part of the PhD project.

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. 


It would be advantageous if you have a good knowledge on materials science in particular physical/mechanical metallurgy, crystallography, and programming.

Excellent English communication skills are essential.

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

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. The position is to be filled before 1 October 2021. 

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. 

You can read more about career paths at DTU here

Further information
Further information may be obtained from Senior Researcher Tianbo Yu, tel.: +45 4525 4889 or Professor Dorte Juul Jensen, tel.: +45 4525 4777 / +45 2226 4657. 

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

Application 
P
lease submit your online application no later than 30 November 2020 (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

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 135 persons, 100 PhD students and a technical/administrative support staff of about 80 persons.

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DTU develops technology for people. With our international elite research and study programmes, we are helping to create a better world and to solve the global challenges formulated in the UN’s 17 Sustainable Development Goals. Hans Christian Ørsted founded DTU in 1829 with a clear vision to develop and create value using science and engineering to benefit society. That vision lives on today. DTU has 12,000 students and 6,000 employees. We work in an international atmosphere and have an inclusive, evolving, and informal working environment. Our main campus is in Kgs. Lyngby north of Copenhagen and we have campuses in Roskilde and Ballerup and in Sisimiut in Greenland.