T & K

Master thesis project: FEM-based microstructure modelling of cemented carbides

Sandvik Coromant in Västberga, Stockholm offers a master thesis project within the Materials Design and Modelling R&D department. The project aims to evaluate the composite materials mechanical response to deformation via FEM-based modelling tools.

Background and scope

Cemented carbides are composite materials with typically one or two hard phases and a ductile binder phase. Their unique properties, comprising high hardness and good ductility makes them commonly used as tool material for metal working.

The relationship between the hard phase (WC grain size) and binder content is understood reasonably well which allows to develop materials according to certain application needs. The mechanical behavior is primarily dictated by the microstructure and the individual phase properties and various empirical and physics-based models have been developed to predict the material hardness primarily based on the composite effect.

However, such tools often lack the right resolution to predict the effects of microstructural changes such as grain shape, grain size distribution and the role of interface properties. Finite Element Modelling (FEM) has the potential to explore microstructural effects in a more detailed way thus helping to develop a deeper understanding towards the composite effects that control the hardness.

Work description

The main steps for the master thesis include:

Literature study.
Develop a methodology for digital testing of the material’s mechanical response to deformation. Critical model parameters need to be defined, and the solver and mesh related limitations should be defined in terms of complexity and system size.
Investigate different WC-Binder composite configurations based on real and model microstructures. Explore the effect of altered phase distributions and material parameters to the materials response to deformation.
Writing of report and oral presentation of the results.

Your background

Having knowledge in Ansys, Abaqus or other FEM software is required for the thesis. You should be curious and independent and an interest in material science is of advantage. Since you will be involved in an international team, knowledge of English is a requirement.

Duration

The thesis project consists of 30 credits and lasts 20 weeks, starting first quarter of 2025. The location for this project is at the Sandvik Coromant research facility in Västberga, Stockholm.

Contact information

Are you curious to know more about this position? Please contact Martin Walbrühl, Senior R&D Professional, at martin.walbruehl@sandvik.com

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How to apply

We have an ongoing selection process and ask you to send your application as soon as possible and no later than January 31st, 2025. Click apply and include your resume and cover letter in English. Please note that we don’t accept applications by e-mail. Job ID: R0073511.

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