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Wykaz obszarów badawczych związanych z tagiem Cermetal:

#	Obszar badawczy	Dziedzina naukowa
1	The proposed doctoral thesis topic concerns the influence of LPBF printing strategies on the microstructure and resistance to hydrogen interaction of a multi-phase cermet produced by additive manufacturing. The research subject arises from the growing interest in materials that combine the high mechanical strength of ceramic phases with the functional properties of metallic phases, as well as the dynamic development of additive manufacturing technologies that enable the production of such materials. The scope of the research will include an analysis of the effect of LPBF process parameters, such as laser power, scanning speed, hatch spacing, and remelting strategy, on microstructure formation, phase distribution, porosity, and residual stress state. Particular attention will be given to the role of interphase boundaries as sites of hydrogen trapping, stress concentration, and microcrack initiation. The planned studies will make it possible to determine the mechanisms of hydrogen transport and accumulation in areas with increased density of structural defects, as well as to evaluate the influence of phase morphology and distribution on delaying crack propagation and reducing the number of damage initiation sites. The obtained results may contribute to the development of guidelines for designing cermet microstructures with enhanced resistance to hydrogen degradation. Promotor: Ph.D., D.Sc. Bogusława Adamczyk-Cieślak Keywords: Druk 3D \| Dyfrakcja rentgenowska \| Mikroskopia elektronowa \| Wodorowanie \| Cermetal \|

Obszar badawczy

Dziedzina naukowa

The proposed doctoral thesis topic concerns the influence of LPBF printing strategies on the microstructure and resistance to hydrogen interaction of a multi-phase cermet produced by additive manufacturing. The research subject arises from the growing interest in materials that combine the high mechanical strength of ceramic phases with the functional properties of metallic phases, as well as the dynamic development of additive manufacturing technologies that enable the production of such materials.
The scope of the research will include an analysis of the effect of LPBF process parameters, such as laser power, scanning speed, hatch spacing, and remelting strategy, on microstructure formation, phase distribution, porosity, and residual stress state. Particular attention will be given to the role of interphase boundaries as sites of hydrogen trapping, stress concentration, and microcrack initiation. The planned studies will make it possible to determine the mechanisms of hydrogen transport and accumulation in areas with increased density of structural defects, as well as to evaluate the influence of phase morphology and distribution on delaying crack propagation and reducing the number of damage initiation sites. The obtained results may contribute to the development of guidelines for designing cermet microstructures with enhanced resistance to hydrogen degradation.

Promotor: Ph.D., D.Sc. Bogusława Adamczyk-Cieślak
Keywords: Druk 3D | Dyfrakcja rentgenowska | Mikroskopia elektronowa | Wodorowanie | Cermetal |