IRON-BASED SINTERED MATERIAL

The present invention provides an iron-based sintered material in which a rolling contact fatigue strength is improved. In an iron-based sintered material used in such an environment that a lubricating oil is sufficiently fed, a hard carbon coating is provided on a surface of a base material constru...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	OKAMOTO KAZUTAKA, YAMAGUCHI SHIZUKA, YAMANISHI YUJI, TSUTSUI TADAYUKI, BABA NOBORU
Format:	Patent
Sprache:	eng
Schlagworte:	LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM PERFORMING OPERATIONS TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention provides an iron-based sintered material in which a rolling contact fatigue strength is improved. In an iron-based sintered material used in such an environment that a lubricating oil is sufficiently fed, a hard carbon coating is provided on a surface of a base material constructed by an iron-based sintered material alloy having a pore via a surface layer hardened by diffusion and an interlayer, and a part of the pore is not covered with the surface layer hardened by diffusion, the interlayer and the hard carbon coating, but is formed in a state of being open to the surface of the surface layer hardened by diffusion.