Products with improved wear resistance/iron nitride layer
AssigneeLucas Industries public limited company
InventorsCyril Dawes, Donald F. Tranter
Life of this patent
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Abstract
An epsilon iron nitride surface layer of high surface wear resistance is formed on a steel component by gas nitriding or nitrocarburizing and, according to the invention, includes the preliminary step of heating the component to the nitriding temperature in an atmosphere which is inert to the metal of the component.
Claims4
A component formed from a low carbon structural steel containing niobium and vanadium or titanium as the sole alloying elements, the component having at a surface thereof an iron nitride compound layer, which layer is non-porous and extends into the component to a depth of 18 micron and has a hardness between about 800 to about 1000 HV.
Dependencies are inferred from the claim text.