PhD in Multiscale modelling of recycled stainless green steels

The Department of Mechanical Engineering department conducts world-class research aligned with the technological interests of the high-tech industry in the Netherlands with a focus on the Brainport region. Our goal is to produce engineers who are both scientifically educated and application-driven by providing a balanced education and research program that combines fundamental and application aspects. We equip our graduates with practical and theoretical expertise preparing them optimally for future challenges.

Introduction

Are you an engineer who wants to contribute to sustainability reducing carbon emissions and materials recycling We are looking for an outstanding and enthusiastic PhD candidate with a strong computational mechanics profile to work on a challenging micro-mechanical modelling project in an exciting multidisciplinary team.

Job Description

The transition to low-carbon steelmaking will significantly alter production chains starting from raw materials to high-end products made from these steels. One of the paths to reduce CO2 emissions in steelmaking is the use of scrap. This will inevitably entail significant variations in the chemical composition of the steel produced which may affect the performance of the steels during processing and service. This is particularly true for stainless steels undergoing phase transformations in view of the targeted mechanical properties.

These phase transformations occur during the metal forming processes in which they are shaped to a product. These need to be well controlled to safeguard the formability of the material during processing on the one hand and securing the resulting strength and hardness properties on the other hand. This makes this class of materials particularly vulnerable to the use of recycled material with possibly uncontrolled or variable content. Accordingly this research project aims to establish predictive insights between microstructures contaminated with tramp elements and the resulting engineering properties as required for product processing.

Vacancy for a modelling-oriented PhD student on the Constitutive behaviour of recycled metastable stainless steel

This project will focus on a model-based approach taking experimental input from the partners involved to assess the influence of scrap-induced changes and contaminations on the performance of stainless steels that are subjected to phase transformations in the production chain. This approach will enable a qualitative and semi-quantitative assessment of the influence of the presence of various elements (and second-phase particles) on stainless steel properties. This step is essential for the introduction of green steels in the market segment exploiting such steels.

This work will consist of the following tasks:

• Extensive literature review on the multi-scale model for strain-induced phase transformation of stainless steels and the influence of tramp elements and contaminations on the microstructure and mechanical behaviour of stainless steels.
• Develop a multi-scale framework for strain-induced martensitic phase transformations applicable to austenitic metastable steels.
• Incorporation of the phase transformation model in a representative volume element (RVE) incorporating crystal plasticity at the meso-scale level.
• Homogenization of the RVE response for exploitation at the macroscopic level
• Model extension to account for the presence of contaminations through either solid solution elements precipitates or second-phase particles.
• Validation of the macroscopic thermo-mechanical properties.

Section Mechanics of Materials

You will work in the section of Mechanics of Materials (MoM) ( at the department of Mechanical Engineering of Eindhoven University of Technology (TU/e). The MoM section is recognized worldwide for its high-level research on experimental analysis theoretical understanding and predictive modelling of complex mechanical behavior in engineering materials at different length scales (e.g plasticity damage fracture) which emerges from the physics and mechanics of the underlying multi-phase microstructure. An integrated numerical-experimental approach is generally adopted for this goal. A state-of-the-art computing infrastructure is in place for the numerical work in this project.

Job Requirements

• An outstanding motivated enthusiastic curiosity-driven researcher. Deep analytical skills initiative creativity and flexibility are highly desired.
• An MSc degree in Mechanical Engineering Materials Science Aerospace Engineering Applied Physics or similar.
• A convincing and very strong background in continuum and computational mechanics supported by excellent grades is required. Candidates without such a background are discouraged to apply.
• Additional experience in materials science metallurgy experimental mechanics mechanical testing micromechanics or structure-property relationships is of benefit.
• Interest to work in an interdisciplinary project with a strong scientific profile but in close coordination with industrial partners such as Philips and Alleima.
• Excellent oral and writing skills in English.

Conditions of Employment

A meaningful job in a dynamic and ambitious university in an interdisciplinary setting and within an international network. You will work on a beautiful green campus within walking distance of the central train addition we offer you:

• Full-time employment for four years with an intermediate assessment after nine months. You will spend a minimum of 10% of your four-year employment on teaching tasks with a maximum of 15% per year of your employment.
• You are offered an advanced PhD-level training program in the field of Engineering Mechanics organized by the Dutch Graduate School on Engineering Mechanics ().
• Salary and benefits (such as a pension scheme paid pregnancy and maternity leave partially paid parental leave) in accordance with the Collective Labour Agreement for Dutch Universities scale P (min. 3059 max. 3881).
• A year-end bonus of 8.3% and annual vacation pay of 8%.
• High-quality training programs and other support to grow into a self-aware autonomous scientific researcher. At TU/e we challenge you to take charge of your own learning process.
• An excellent technical infrastructure on-campus childrens day care and sports facilities.
• An allowance for commuting working from home and internet costs.
• A Staff Immigration Team and a tax compensation scheme (the 30% facility) for international candidates.

Information

Do you recognize yourself in this profile and would you like to know more about the scientific content of the PhD project Please feel free to contact us: Prof. Marc Geers () Dr. Ron Peerlings ().

Visit our website for more information about the application process or the conditions of employment. You can also contact HR Services ().

Are you inspired and would like to know more about working at TU/e Please visit our career page.

Application

We invite you to submit a complete application by using the apply button. The application should include a:

• a Cover letter in which you briefly describe your motivation and qualifications for the position.
• a detailed Curriculum Vitae including:
  • a list of your publications
  • a brief description of your MSc thesis and BSc project.
  • contact information of three references
• The Official Grade Lists of your . . (and PhD) education including all your courses.

We look forward to your application. Promising candidates may expect an online interview possibly followed by an invitation to visit us in Eindhoven.

Please note

• You can apply online. We will not process applications sent by email and/or post.
• A pre-employment screening (e.g. knowledge security check) can be part of the selection procedure. For more information on the knowledge security check please consult Chapter 8 of theNational Knowledge Security Guidelines.
• Please do not contact us for unsolicited services.

Eindhoven University of Technology is an internationally top-ranking university in the Netherlands that combines scientific curiosity with a hands-on attitude. Our spirit of collaboration translates into an open culture and a top-five position in collaborating with advanced industries. Fundamental knowledge enables us to design solutions for the highly complex problems of today and tomorrow.