Carbonitrided component having excellent surface fatigue strength and bending fatigue strength, and method for manufacturing same

The carbonitrided component pertaining to an embodiment of the present invention has a carbonitrided layer on the surface of a steel material, wherein the steel material contains a predetermined ingredient, and the carbonitrided layer has a hardness of 850 HV or greater at a position a depth of 25 [...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MATSUGASAKO, AKIHIRO, SHUDO, TAKEHIRO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL ALLOYS CHEMICAL SURFACE TREATMENT CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS 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 GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GRINDING 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 PERFORMING OPERATIONS POLISHING SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The carbonitrided component pertaining to an embodiment of the present invention has a carbonitrided layer on the surface of a steel material, wherein the steel material contains a predetermined ingredient, and the carbonitrided layer has a hardness of 850 HV or greater at a position a depth of 25 [mu]m from the surface thereof, the absolute value of the compressive residual stress thereof at a position a depth of 200 [mu]m from the surface thereof is 200 MPa or greater, the absolute value of the maximum compressive residual stress to a position a depth of 200 [mu]m from the surface thereof is 850 MPa or greater, and the ten-point average roughness Rz specified by JIS B0601 (1994) thereof satisfies a value of 2.5 [mu]m or less.