Publications by authors named "Janusz Zygmuntowicz"
Materials (Basel)
October 2021
Article Synopsis
- The study investigates the 0.4C-35Cr-45Ni-Nb alloy used in high-temperature environments (1125 °C) with cracked hydrocarbon feeds and steam, focusing on its performance in pyrolytic furnace coil tubes.
- Metallographic tests showed significant structural changes in the alloy, particularly an increase in carbides due to carburization from the process medium, while the central and external parts of the samples showed substantial degradation.
- Mechanical tests revealed reduced plastic deformation in the alloy due to gas penetration and carbide formation, although corrosion levels were low and no creep mechanism was observed.
