NITRIDED COMPONENT AND NITRIDING TREATMENT METHOD

To provide a nitriding mechanical component and a nitriding treatment method therefor.SOLUTION: A nitrided component uses a steel material including C:0.08-0.60%, Si:0.01-0.50%, Mn:0.40-3.00%, P:0.05% or less, S:0.001-0.100%, Cr:0.03-2.00%, Al:0.001-0.080%, N:0.025% or less, and a rest of Fe and an...

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Bibliographische Detailangaben
Hauptverfasser:	UMEHARA TAKAHIDE, SUKETANI MASAHITO
Format:	Patent
Sprache:	eng ; jpn
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
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Beschreibung
Zusammenfassung:	To provide a nitriding mechanical component and a nitriding treatment method therefor.SOLUTION: A nitrided component uses a steel material including C:0.08-0.60%, Si:0.01-0.50%, Mn:0.40-3.00%, P:0.05% or less, S:0.001-0.100%, Cr:0.03-2.00%, Al:0.001-0.080%, N:0.025% or less, and a rest of Fe and an impurity. In a part of or all of a cross sectional plane vertical to a component surface of the nitrided component, a compound layer consisting of iron and nitrogen is formed, the compound layer including 80 area% or more of ε iron nitride, being 1-12 μm thick, and having a compression residual stress of 200 MPa or more measured on an upper most surface of the compound.SELECTED DRAWING: Figure 2 【課題】窒化機械部品と、そのための窒化処理方法の提供。【解決手段】Ｃ：０．０８〜０．６０％、Ｓｉ：０．０１〜０．５０％、Ｍｎ：０．４０〜３．００％、Ｐ：０．０５％以下、Ｓ：０．００１〜０．１００％、Ｃｒ：０．０３〜２．００％、Ａｌ：０．００１〜０．０８０％、Ｎ：０．０２５％以下を含有し、残部がＦｅおよび不純物からなる鋼材を用いた窒化部品であって、部品表面と垂直な断面上で観察される前記窒化部品の表面のすべて、または一部に、鉄と窒素からなる化合物層が形成され、前記化合物層は、ε窒化鉄の割合が８０面積％以上、厚さが１〜１２μｍ、かつ化合物層最表面で測定される圧縮の残留応力が２００ＭＰａ以上であることを特徴とする窒化部品。【選択図】図２