Master Thesis »modelling of Novel High Strength Steel Alloys for Hydrogen Pressure Vessels«

Vor 6 Tagen

Freiburg, Deutschland Mechanics of Materials Vollzeit

At the Fraunhofer IWM, 330 employees conduct research on materials and components with the aim of better understanding, developing, processing and using them. In our projects, we bridge the gap between the properties of materials and the durability, safety and function of technical systems.
We show ways and solutions for more energy efficiency and sustainability. After all, materials are crucial for climate neutrality, for the careful use of our planet's limited resources and for the sustainable transformation of our economy.

**What you will do**

Gaseous hydrogen is currently stored in pressure vessels made from high strength steel alloys. However, these steels, when exposed to hydrogen, exhibit hydrogen embrittlement (HE) that reduces the lifetime and safe use of the material. You will help develop new steel alloys with increased resistance to HE through material modelling and experimental testing. You will write your master’s thesis and a publication on creating a FE model for comparing novel high strength steel alloys, and validating model results against validated against fracture toughness and fatigue crack growth experiments.

A wide variety of tasks await you:
You will be responsible for development of a Finite Element Model (FEM) which couples microstructure information, residual stress, and hydrogen diffusion and solubility responses of high strength steel alloys. This will include calibration, validation and verification of the model to experimental testing. You will plan and evaluate the fracture toughness and fatigue crack growth testing, and then evaluate both sets of results to extract meaningful insights into the hydrogen embrittlement of novel high strength steel alloys.

**What you bring to the table**

Your professional background:
Qualifications that complement your profile:
You are passionate about numerical modeling and programming. You work independently, are communicative, and have a structured approach to tasks. You are also proactive in finding solutions to complex problems and critically analyze the issues you encounter.

**What you can expect**

Always something new:
Working at the Fraunhofer IWM means researching innovative topics in an established research institute. Thanks to our flat hierarchies and open working culture, you will always have the right support at your disposal.

What we offer you:
Through flexible working hours and mobile working, we are committed to ensuring that you can balance your free time and work. In family emergencies, we offer emergency childcare and allow you to bring your children to our parent-child office if necessary, in order to react flexibly to unforeseen situations or childcare bottlenecks. You can also benefit from a wide range of employee discounts on events, furniture, clothing and much more.

Our open institute culture aims to make everyone feel welcome and comfortable here.
Come and join us and see for yourself

With its focus on developing key technologies that are vital for the future and enabling the commercial utilization of this work by business and industry, Fraunhofer plays a central role in the innovation process. As a pioneer and catalyst for groundbreaking developments and scientific excellence, Fraunhofer helps shape society now and in the future.

Dr. Adrienne Muth will answer all technical questions at +49(0) 761 5142-563.

Fraunhofer Institute for Mechanics of Materials IWM

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