Abstract
ABSTRACTThe microstructure resulting from a gaseous multistage nitrocarburising treatment applied to a 16MnCr5 steel has been investigated to study the microstructural evolution during the process and the effects of severe plastic deformation. The depth of the compound layer and the porous zone has been measured by optical microscopy. The microstructure has been investigated by means of a scanning electron microscope equipped with both an electron backscatter diffraction detector, to assess the amount and the distribution of nitrogen nitrides, and an energy-dispersive X-ray microanalysis to reveal the N diffusion depth. Finally, microhardness investigations have been carried out. The results indicate that severe plastic deformation influences the microstructure of the compound layer, the N concentration trends and the hardness profiles. The effects of severe plastic deformation lead to a greater initial diffusivity of nitrogen, a subsequent premature N saturation in the diffusion zone and an increased porous/compact-layer thickness ratio.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
