Abstract

The present invention relates to a method and system for treatment of a surface of a metallic material component, the method comprising the steps: electro-spark treating the surface of the metallic component by means of an electro-spark electrode, wherein the metallic material is a basically ferritic, perlitic and/or austenitic steel and the method creates a thin layer with martensitic microstructures at the surface of the metallic material component. Serpentines and quartz can be incorporated by an additional step as well as the surface randomly structured by this.

IPC Classes  ?

• C21D 1/38 - Heating by cathodic discharges
• F16C 33/12 - Structural compositionUse of special materials or surface treatments, e.g. for rust-proofing
• B23H 9/00 - Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
• C21D 7/08 - Modifying the physical properties of iron or steel by deformation by cold working of the surface by burnishing or the like
• C21D 1/06 - Surface hardening
• C23C 24/04 - Impact or kinetic deposition of particles
• B23P 9/04 - Treating or finishing by hammering or applying repeated pressure
• C21D 9/40 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for ringsHeat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for bearing races