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Structural nuclear materials are subjected to neutron irradiation at elevated temperature, thereby affecting the operational lifetime of various critical reactor components. Dose-dependent material damage directly depends on dislocation-mediated plasticity mechanisms and their interactions with the irradiation defect microstructures, in the form of interstitial and vacancy clusters. Corresponding plastic strain spreading mechanisms...

As we head towards 2030 and 55% carbon emission reduction targets with the ultimate goal of net zero carbon by 2050. It has become evident that materials and the source of such materials will play a key role for future generations of devices and products. This along with the depletion of petroleum resources and their associated environmental...

Oxide dispersion-strengthened materials are reinforced by a (Y, Ti, O) nano-oxide dispersion and thus can be considered as nanostructured materials. Designed to serve in extreme environment – i.e., a nuclear power plant – the challenge for ODS steels is to preserve the nano-oxide dispersion under irradiation in order to maintain the excellent creep properties of the alloy in the reactor. Under irradiation...

The talk describes the investigations on high-Ni, high-Mn and low-Cu weld metals from the decommissioned Barsebäck 2 boiling water reactor (BWR) reactor pressure vessel (RPV). The reactor pressure vessel head (RPVH) weld and axial and circumferential beltline welds of the Barsebäck 2 RPV have been studied. The investigations includ...

The CoE NOMATEN team (NCBJ + VTT) on March 13-15, 2024 visited companies in the Gdańsk Pomerania region that implement numerous energy projects, including nuclear energy, solutions in the field of renewable energy sources and a sustainable energy system in the country and in Europe. Another on-site visit of CoE NOMATEN directly to production plants was aimed at presenting the research and design capabilities of the NOMATEN Center and encouraging companies to implement joint research and implementation projects in the field of energy solutions and material technologies.

Materials informatics is revolutionizing the field of materials science by leveraging data-driven approaches and advanced computational techniques to accelerate the discovery, development, and optimization of materials. By integrating vast amounts of experimental and computational data with machine learning and artificial intelligence, materials informatics enables researchers to predict material properties, identify novel materials, and optimize manufacturing processes with unprecedented speed and accuracy. This interdisciplinary approach not only enhances our fundamental understanding of materials but also drives innovation across various industries, from electronics and aerospace to healthcare and sustainable energy solutions. As we continue to face global challenges, materials informatics stands at the forefront, offering powerful tools to develop the next generation of advanced materials and technologies.

Microstructural stability of multi-component systems under extreme environment represents one of most challenging issues not only in multi-scale materials modelling but also for developing reliable and advanced engineering components for nuclear material applications. Recently, compositionally complex alloys (CCAs) are designed as novel radiation-resistant materials for future fusion power plants while...

The development of chemical reactions that can be performed in living systems (i.e. cells, model organisms) has long held unique fascination in the field of chemical biology. A bio-orthogonal reaction is characterized by the reaction of two functionalities, which will react under mild physiological conditions and are inert towards the biological environment.

Body-centered-cubic (BCC) high entropy alloys show exceptional strengths up to 1900K [1]. Fundamental understanding of the mechanisms that control strengthening is necessary to formulate a theory that enables screening over the immense compositional HEA space [2]. Supported by experimental findings in NbTaTiV and CrMoNbV alloys [3], we show with theory [4] that edge dislocations can

Faced with major societal challenges (ecological crisis, energy crisis), it is essential to better understand the behaviour of materials in order to improve the lifespan of nuclear reactors as well as their safety. The properties of materials are...