Lightweight, high-strength and high-corrosion-resistance Fe-Mn-Al-C-Cr steel and preparation method thereof

The invention relates to the technical field of metal injection molding, and particularly discloses lightweight, high-strength and high-corrosion-resistance Fe-Mn-Al-C-Cr steel and a preparation method thereof. The lightweight, high-strength and high-corrosion-resistance Fe-Mn-Al-C-Cr steel is compo...

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Bibliographische Detailangaben
Hauptverfasser:	DENG ZHONGYONG, ZHU MEILING, DUAN MANTANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ALLOYS CASTING 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 MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS POWDER METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	The invention relates to the technical field of metal injection molding, and particularly discloses lightweight, high-strength and high-corrosion-resistance Fe-Mn-Al-C-Cr steel and a preparation method thereof. The lightweight, high-strength and high-corrosion-resistance Fe-Mn-Al-C-Cr steel is composed of the following components in percentage by weight: 25-35wt.% of Mn, 6-12wt.% of Al, 0.7-2.0wt.% of C, 1.0-6.0wt.% of Cr, 0.01- 0.5wt.% of O, 0-0.1wt.% of Si, 0-0.6wt.% of Ni, 0-0.05wt.% of Cu, 0-0.05wt.% of N, 0-0.1wt.% of trace elements, and the balance Fe. The preparation method of the steel comprises the following steps of powder raw material preparation, feed preparation, injection, catalysis, sintering, heat treatment and passivation treatment. According to the lightweight, high-strength and high-corrosion-resistance Fe-Mn-Al-C-Cr steel and the preparation method thereof, a proper amount of Cr and other trace elements are added, and a passivation process is adopted, so that the prepared Fe-Mn-Al-C-Cr ste