PROCESS FOR OBTAINING A FINE-GRAINED MARTENSITIC STRUCTURE COMPONENT
Applicants:
- Technical University of Denmark [NORA names: DTU Technical University of Denmark; University; Denmark; Europe, EU; Nordic; OECD]
Abstract
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, such that austenite is decomposed into a steel component comprising at least an amount of carbon- and/or nitrogen-containing precipitates; bringing the steel component comprising at least an amount of carbon- and/or nitrogen-containing precipitates to a temperature T3 which is above T2, thereby creating an at least partly austenitic nitrogen-containing steel component optionally comprising at least an amount of carbon- and/or nitrogen-containing precipitates; and bringing the at least partly austenitic nitrogen-containing steel component to a temperature T4 that is below a martensite start temperature of the at least partly austenitic nitrogen-containing steel component for initiating transformation of at least some of the austenite into fine-grained martensite, thereby producing a steel component comprising a fine-grained martensite structure component.
Patent Family Records (2)
PROCESS FOR OBTAINING A FINE-GRAINED MARTENSITIC STRUCTURE COMPONENT
Danmarks Tekniskie Universitet, Technical University of Denmark VILLA MATTEO, CHRISTIANSEN THOMAS LUNDIN, DAHL KRISTIAN VINTER, (...more)
2024, EP-4367275-A1
PROCESS FOR OBTAINING A FINE-GRAINED MARTENSITIC STRUCTURE COMPONENT
Technical University of Denmark, UNIV DANMARKS TEKNISKE VILLA MATTEO, CHRISTIANSEN THOMAS LUNDIN, DAHL KRISTIAN VINTER, (...more)
2023, WO-2023281022-A1