In this study, Cr2O3, Cr2O3-SiO2-TiO2 and Cr2O3-SiO2-TiO2-graphite coatings were formed by atmospheric plasma spraying. The influence of SiO2-TiO2 SiO2-TiO2-graphite reinforcements on the surface morphology, elemental composition, structure tribological properties chromia was determined. friction coefficients specific wear rates investigated a ball-on-flat configuration using 1 N 3 loads under ...

This study shows the effects of nuclear waste glass production on Monofrax K-3 refractory corrosion. A continuously fed research-scale melter containing an Fe- and Ni-rich simulated feed with borosilicate glass-forming chemicals was cyclically melted at 1150°C idled 1050°C for a total 11 weeks. Chemical maps using scanning electron microscopy show interactions between quenched melt refractory. ...

For the additive manufacturing of chromium-oxide coated stainless steel powders, melting, diffusion, sintering behaviors cementite phase in during heat treatment can affect products’ physical and chemical properties, thus, are worth studying. In this work, we use ReaxFF reactive force-field-based molecular dynamics simulations to investigate at level through an atomistic-scale representation fo...

The microstructure and microchemistry of the oxide scales formed on Fe-21Cr-32Ni Fe-17Cr-9Ni steels after exposure to deaerated high-temperature high-pressure steam at 600 °C for 1500 h have been analysed compared by several advanced characterization techniques. By comparing different-stages exposure, it is shown that steel was internally oxidized early-stage, then an external scale developed t...

High-temperature oxidation of bulk single crystal, fine and coarse grained polycrystals Cr2AlC has been performed from 800 °C to 1500 °C. In the temperature range T = [800;1400] °C, an ?-Al2O3 scale with a Cr7C3 subscale are in-situ formed independently initial microstructure on top Cr2AlC. CALPHAD calculations were explain formation instead expected mixture carbides, indicating favourable driv...