CARBONITRIDED COMPONENT MADE OF STEEL

PROBLEM TO BE SOLVED: To provide a carbonitrided component made of steel which has excellent bending fatigue strength and surface fatigue strength, and can respond to the requirements of reduction in weight, size and higher stress load of a component. SOLUTION: Regarding the carbonitrided component...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	OFUJI YOSHIHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a carbonitrided component made of steel which has excellent bending fatigue strength and surface fatigue strength, and can respond to the requirements of reduction in weight, size and higher stress load of a component. SOLUTION: Regarding the carbonitrided component made of steel, in which the base is composed of steel comprising 0.1 to 0.3% C, 0.05 to 1.5% Si, 0.2 to 1.5% Mn, 0.003 to 0.05% S, 0.5 to 2.5% Cr, 0.20 to 0.8% Mo, 0.01 to 0.05% Al and 0.008 to 0.025% N, and the balance Fe with impurities, and, in the region to a depth of 0.1 mm from the surface, the average C concentration Cs is 0.60 to 0.90%, the average N concentration Ns is 0.15 to 0.35%, Cs+Ns is 0.80 to 1.10%, also, in the case of Cr-(Ns×3.7)≥0, [(1+0.7×Si)×(1+3.3×Mn)×[1+2.2×äCr-(Ns×3.7)+(0.048/Ns)}]×(1+3.0×Mo)≥9], and, in the case of Cr-(Ns×3.7)