Effect of Tramp Elements on hot Rolled Microstructures in Steels
Job description
The steel industry is undergoing a major transformation to meet sustainability and emissions goals. Particularly, steel production is moving into hydrogen-based DRI (Direct Reduced Iron) and EAF (Electric Arc Furnace) routes, which will significantly increase the use of scrap metal. However, scrap introduces unwanted impurities known as tramp elements—such as copper (Cu), tin (Sn), and nickel (Ni)—which can negatively impact the steel’s microstructure and mechanical properties.
This project investigates how these tramp elements affect the microstructure and performance of a high-value steel grade: a dual-phase automotive steel. The goal is to understand their impact during hot rolling, cold rolling, and annealing processes and to develop process strategies to mitigate potential negative effects. By doing so, the project supports the production of high-quality steels from recycled materials, strengthening circularity in the steel sector and contributing to EU and global CO₂ reduction targets.
The research will be conducted at TU Delft in collaboration with Tata Steel Netherlands, combining experimental work with advanced microstructural analysis and mechanical testing. The results will help guide future steel design and processing in scrap-rich manufacturing environments.
We are looking for an ambitious PhD-researcher to join this project. As a PhD-researcher, you will work in a stimulating academic environment and collaborate with a leading industrial partner. You will also have the opportunity to contribute to the academic community through discussions, the co-supervision of students, and guest lectures.
Job requirements
We seek an outstanding, motivated and enthusiastic researcher with experience in microstructure development in metals and physical metallurgy. Applicant must:
- hold an MSc-degree in the field of materials science or related disciplines, such as solid-state physics or materials engineering, with a solid background in metal science
- have experience with microstructural characterization
- have a critical, curious, and creative approach to the research, with excellent problem-solving skills and communication skills
- have proven experience in writing scientific reports
- have the motivation to work in an international, multidisciplinary, and academic-industrial team
- be willing to participate in educational activities such as guest lectures
- have proven excellent written and spoken English skills
TU Delft (Delft University of Technology)
Delft University of Technology is built on strong foundations. As creators of the world-famous Dutch waterworks and pioneers in biotech, TU Delft is a top international university combining science, engineering and design. It delivers world class results in education, research and innovation to address challenges in the areas of energy, climate, mobility, health and digital society. For generations, our engineers have proven to be entrepreneurial problem-solvers, both in business and in a social context.
At TU Delft we embrace diversity as one of our core values and we actively engage to be a university where you feel at home and can flourish. We value different perspectives and qualities. We believe this makes our work more innovative, the TU Delft community more vibrant and the world more just. Together, we imagine, invent and create solutions using technology to have a positive impact on a global scale. That is why we invite you to apply. Your application will receive fair consideration.
Challenge. Change. Impact!
Faculty Mechanical Engineering
From chip to ship. From machine to human being. From idea to solution. Driven by a deep-rooted desire to understand our environment and discover its underlying mechanisms, research and education at the ME faculty focusses on fundamental understanding, design, production including application and product improvement, materials, processes and (mechanical) systems.
ME is a dynamic and innovative faculty with high-tech lab facilities and international reach. It’s a large faculty but also versatile, so we can often make unique connections by combining different disciplines. This is reflected in ME’s outstanding, state-of-the-art education, which trains students to become responsible and socially engaged engineers and scientists. We translate our knowledge and insights into solutions to societal issues, contributing to a sustainable society and to the development of prosperity and well-being. That is what unites us in pioneering research, inspiring education and (inter)national cooperation.
Click here to go to the website of the Faculty of Mechanical Engineering. Do you want to experience working at our faculty? These videos will introduce you to some of our researchers and their work.
Conditions of employment
Doctoral candidates will be offered a 4-year period of employment in principle, but in the form of 2 employment contracts. An initial 1,5 year contract with an official go/no go progress assessment within 15 months. Followed by an additional contract for the remaining 2,5 years assuming everything goes well and performance requirements are met.
Salary and benefits are in accordance with the Collective Labour Agreement for Dutch Universities, increasing from €3059 - €3881 gross per month, from the first year to the fourth year based on a fulltime contract (38 hours), plus 8% holiday allowance and an end-of-year bonus of 8.3%.
As a PhD candidate you will be enrolled in the TU Delft Graduate School. The TU Delft Graduate School provides an inspiring research environment with an excellent team of supervisors, academic staff and a mentor. The Doctoral Education Programme is aimed at developing your transferable, discipline-related and research skills.
The TU Delft offers a customisable compensation package, discounts on health insurance, and a monthly work costs contribution. Flexible work schedules can be arranged.
Will you need to relocate to the Netherlands for this job? TU Delft is committed to make your move as smooth as possible! The HR unit, Coming to Delft Service, offers information on their website to help you prepare your relocation. In addition, Coming to Delft Service organises events to help you settle in the Netherlands, and expand your (social) network in Delft. A Dual Career Programme is available, to support your accompanying partner with their job search in the Netherlands.
Additional information
For more information about this vacancy, please contact Prof. Dr. Maria J. Santofimia (M.J.SantofimiaNavarro@tudelft.nl) or Dr. Hossein Beladi (H.Beladi@tudelft.nl).
For information about the application procedure, please contact Mrs. Anita van Vianen, email: recruitment-me@tudelft.nl.
Application procedure
Are you interested in this vacancy? Please apply no later than 8 June 2026 via the application button and upload the following documents:
You can address your application to Prof. Dr. Maria J. Santofimia and Dr. Hossein Beladi.
Doing a PhD at TU Delft requires English proficiency at a certain level to ensure that the candidate is able to communicate and interact well, participate in English-taught Doctoral Education courses, and write scientific articles and a final thesis. For more details please check the Graduate Schools Admission Requirements.
Please note:
- You can apply online. We will not process applications sent by email and/or post.
- As part of knowledge security, TU Delft conducts a risk assessment during the recruitment of personnel. We do this, among other things, to prevent the unwanted transfer of sensitive knowledge and technology. The assessment is based on information provided by the candidates themselves, such as their motivation letter and CV, and takes place at the final stages of the selection process. When the outcome of the assessment is negative, the candidate will be informed. The processing of personal data in the context of the risk assessment is carried out on the legal basis of the GDPR: performing a public task in the public interest. You can find more information about this assessment on our website about knowledge security.
- Please do not contact us for unsolicited services.
