公开(公告)号：US20170349997A1

公开(公告)日：2017-12-07

申请号：US15538005

申请日：2015-12-15

Applicant: H.E.F.

Inventor： Pierre-Louis MAGDINIER ,  Marie-Noelle DESBOUCHE-JANNY

IPC: C23C8/80 ,  C23C8/58 ,  C23C8/02

Abstract: Disclosed is a method for surface treatment of a steel component, providing high resistance to wear and corrosion, including nitriding or nitrocarburising to form a compound layer with a thickness of at least 8 micrometers made up of iron nitrides having phases ε and/or γ′, oxidizing to generate a layer of oxides with a thickness of 0.1-3 micrometers, and soaking in an impregnation bath during at least 5 minutes at room temperature, the bath being made up of at least 70 wt %, ±1%, of a solvent made up of a mixture of hydrocarbons formed by a C9 to C17 alkane fraction, 10 to 30 wt %, ±1%, of at least one paraffin oil formed by a C16 to C32 alkane fraction, and at least one additive such as a synthetic phenolic additive with a concentration of 0.01 to 3 wt %, ±0.1%.