Process of quickly ionitriding of 4Cr14Ni14W2Mo heat-resistant steel

The invention discloses a process of quickly ionitriding of 4Cr14Ni14W2Mo heat-resistant steel. The process comprises the following steps: tempering treatment before nitriding: a, cleaning the 4Cr14Ni14W2Mo heat-resistant steel thoroughly with a cleaner; b, putting the cleaned 4Cr14Ni14W2Mo heat-res...

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description The invention discloses a process of quickly ionitriding of 4Cr14Ni14W2Mo heat-resistant steel. The process comprises the following steps: tempering treatment before nitriding: a, cleaning the 4Cr14Ni14W2Mo heat-resistant steel thoroughly with a cleaner; b, putting the cleaned 4Cr14Ni14W2Mo heat-resistant steel in an electric furnace for three-time solution treatment; and c, detecting the mechanical properties of the 4Cr14Ni14W2Mo heat-resistant steel after solution treatment and selecting steel, the grain size of which is 8-10 grades, which is free of slip line in crystal and the quantity ofcrystal twin of which is smaller than or equal to 15%, for later use; and ionitriding treatment: cleaning surface dirt of the selected 4Cr14Ni14W2Mo heat-resistant steel with the cleaner, and removingburrs, and then carrying out ionitriding; and finally, carrying out inflation and blowing-in of the furnace. The process disclosed by the invention has the characteristics of being capable of solvingthe above technical proble
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language chi ; eng
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subjects ALLOYS
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
FERROUS OR NON-FERROUS ALLOYS
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
TREATMENT OF ALLOYS OR NON-FERROUS METALS
title Process of quickly ionitriding of 4Cr14Ni14W2Mo heat-resistant steel
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