Project description
Mitigating hydrogen embrittlement in nickel-based materials
Nickel and nickel alloys are susceptible to hydrogen embrittlement, where hydrogen atoms diffuse into the metal, especially at grain boundaries. This weakens the microstructure and can lead to fracturing. Supported by the Marie Skłodowska-Curie Actions programme, the HySens project will investigate how networks of different grain boundaries and triple junctions affect nickel’s sensitivity to hydrogen embrittlement. Using a specialised software tool, it will model 2D bi- and tri-crystal networks in molecular dynamics code and then use these models to study the impact of varying microstructural parameters. Lastly, the project will reconstruct 3D polycrystalline finite element models to provide optimal microstructural designs for networks with enhanced resistance to hydrogen embrittlement.
Objective
A network of grain boundaries (GBs) and a microstructure which is less sensitive to hydrogen embrittlement using grain boundary engineering will be assessed on multiple scales. The fabrication of bi and tri crystals with a great variability of grains misorientations according to the probability of their presence polycrystalline nickel and nickel-based superalloys will be done. The hydrogen-GBs and hydrogen- triple junctions (TJs) interactions will be examined for different configurations of nickel bi-crystal and tri-crystals systems having variety of grain boundary energy, vacancy concentration and excess volume. Finally, influence of hydrogen on GBs and TJs will be characterized by diffusivity, trapping or segregation energies and cohesive energies. The atomistic level investigation will be done to understand the fundamentals of hydrogen embrittlement of GBs and TJs having same orientation as of fabricated crystals. The bi- and tri-crystals will be modelled in Molecular Dynamics code using LAMMPS software for understanding at atomistic level. A 3D polycrystalline FEM model will be reconstructed and these simulations should provide the optimum solutions for the architecture of the GBs and TJs networks to obtain the less sensitive microstructures to hydrogen embrittlement.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences computer and information sciences software
- agricultural sciences agriculture, forestry, and fisheries agriculture grains and oilseeds
- natural sciences chemical sciences inorganic chemistry transition metals
- engineering and technology environmental engineering energy and fuels renewable energy hydrogen energy
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA)
MAIN PROGRAMME
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Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) HORIZON-MSCA-2023-PF-01
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
17031 La Rochelle
France
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.