METHOD FOR THE THERMAL SUPERFICIAL TREATMENT BY PLASMA FOR THE AUSTENITIC STAINLESS STEEL

The present disclosure is related to a method for the thermal superficial treatment by plasma for the austenitic stainless steel; comprising the plasma heat treatment stage in a temperature range of 370°C to 430°C, for a time between half an hour and one hour, at a pressure of between 100 and 500 Pa...

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Hauptverfasser: JUAN CARLOS DIAZ GUILLEN, JORGE LEOBARDO ACEVEDO DAVILA, Alejandro GARZA GÓMEZ, EVERARDO EFREN GRANDA GUTIERREZ, RITA MUÑOZ ARROYO
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creator JUAN CARLOS DIAZ GUILLEN
JORGE LEOBARDO ACEVEDO DAVILA
Alejandro GARZA GÓMEZ
EVERARDO EFREN GRANDA GUTIERREZ
RITA MUÑOZ ARROYO
description The present disclosure is related to a method for the thermal superficial treatment by plasma for the austenitic stainless steel; comprising the plasma heat treatment stage in a temperature range of 370°C to 430°C, for a time between half an hour and one hour, at a pressure of between 100 and 500 Pa, in a gaseous atmosphere based on low pressure Oxygen and Hydrogen, at a current density of 0.5 to 1.5 mA/cm2, promoting the formation of a superficial austenite layer consisting of hematite and magnetite iron oxides. En vista de lo anteriormente descrito y con el propósito de dar solución a las limitantes encontradas, es objeto de la invención ofrecer un método de tratamiento térmico por plasma de un acero inoxidable austenítico, que comprende la etapa de tratamiento térmico por plasma en un rango de temperatura de 370°C a 430°C, durante un tiempo de 0.5 a 1 hr., a una presión de entre 100 a 500 Pa, en una atmósfera gaseosa de Oxígeno e Hidrógeno a baja presión, a una densidad de corriente de entre 0.5 a 1.5 mA/cm2, que promueve la formación de una capa austenita superficial constituida por óxidos de hierro tipo hematita y magnetita.
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comprising the plasma heat treatment stage in a temperature range of 370°C to 430°C, for a time between half an hour and one hour, at a pressure of between 100 and 500 Pa, in a gaseous atmosphere based on low pressure Oxygen and Hydrogen, at a current density of 0.5 to 1.5 mA/cm2, promoting the formation of a superficial austenite layer consisting of hematite and magnetite iron oxides. En vista de lo anteriormente descrito y con el propósito de dar solución a las limitantes encontradas, es objeto de la invención ofrecer un método de tratamiento térmico por plasma de un acero inoxidable austenítico, que comprende la etapa de tratamiento térmico por plasma en un rango de temperatura de 370°C a 430°C, durante un tiempo de 0.5 a 1 hr., a una presión de entre 100 a 500 Pa, en una atmósfera gaseosa de Oxígeno e Hidrógeno a baja presión, a una densidad de corriente de entre 0.5 a 1.5 mA/cm2, que promueve la formación de una capa austenita superficial constituida por óxidos de hierro tipo hematita y magnetita.</abstract><oa>free_for_read</oa></addata></record>
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subjects CHEMICAL SURFACE TREATMENT
CHEMISTRY
COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
COATING MATERIAL WITH METALLIC MATERIAL
COATING METALLIC MATERIAL
DIFFUSION TREATMENT OF METALLIC MATERIAL
GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS
INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL
MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS
METALLURGY
METALLURGY OF IRON
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
title METHOD FOR THE THERMAL SUPERFICIAL TREATMENT BY PLASMA FOR THE AUSTENITIC STAINLESS STEEL
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