The disclosure relates to a process for the manufacture of a steel component comprising a fine-grained martensite structure component. The process comprises the steps of providing a steel component having an initial steel composition; introducing nitrogen into the steel component at a temperature T1 above 950°C, thereby creating an at least partly austenitic nitrogen-containing steel component; bringing the at least partly austenitic nitrogen-containing steel component to a temperature T2, su...
A trap for horizontal flow marine sediment, useful for collecting and sampling marine sediments where horizontal currents are intense and turbulent; the trap is comprising a first inlet opening and a second outlet opening, configured to allow the inlet and the outlet of a marine current, the path between the two openings comprising: an inlet area with a divergent section, connected to the first inlet opening; a sedimentation area with a greater section with respect to the inlet area, in order...
A trap (1) for marine sediments, characterized in that it comprises a first inlet opening (10) and a second outlet opening (11) on two vertical sides opposite each other, which are arranged to be an inlet and an outlet for ocean currents, said trap (1) comprising between said two openings (10, 11): an inlet region (12) having a cross-section that diverges in width between the inlet opening (10) and an end section (122) of the inlet region (12); -a sedimentation zone (13) having a cross sectio...
Trap (1) for marine sediments, characterized in that it comprises on two vertical sides, opposite each other, a first entrance opening (10) and a second exit opening (11), configured to allow the entry and exit of marine sediments. . current, said trap (1) comprising between said two openings (10, 11): an entrance area (12), the section of which diverges in terms of width between said entrance opening (10) and the end section (122) of said entrance area (12); a sedimentation zone (13) having ...