The dissertation deals with the issue of welding with weld metal type 25Cr13Ni (used brands of additive materials Böhler AWS ER 309 LSi, ESAB OK Autrod 309LSi, Oerlikon INERTFIL 309LSi a Sv-07Ch25N13) for applications in nuclear energy. The work focuses on solving the&...

Acceleration the oxidation kinetics while keeping the electrochemical conditions similar to those of the primary water in a pressurized water reactor. Comparison with results from pressurized water and determination of equivalence between water and steam environment. Creation of a computational m...

Deep cryogenic treatment (DCT) of WC-Co cemented carbides (CC) was experimentally explored. Four types of cemented carbides were studied. They had different WC grain sizes and the volume fractions of the cobalt binder. Some specimens were deep-cryogenic-treated (DCT) at -186°C in dry va...

The effects of surface pretreatments on the cerium-based conversion coating applied on an AA5083 aluminum alloy were investigated using a combination of scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), polarization testing, and electrochemical impedance spectroscopy. Two steps...

The paper deals with the influence of deep cryogenic treatment on the structure of sintered WC-Co carbides from the aspect of XRD analysis. We demonstrate the influence of cryogenic processing on the change of grain size, the development of Co phases in the structure, and ...