MANUFACTURE OF HOT-ROLLED HIGH-TENSILE STEEL PLATE HAVING DUAL-PHASE STRUCTURE AND EXCELLENT IN WORKABILITY

PURPOSE:To uniformly disperse a fine martensitic phase into the part corresponding to the lath of a tempered martensitic phase by subjecting a steel slab in which respective contents of C, Si, Mn, And Al are specified to hot rolling, cooling, reheating, and recooling under respectively prescribed co...

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Bibliographische Detailangaben
Hauptverfasser:	MORITA MASAHIKO, TOGASHI FUSAO
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	PURPOSE:To uniformly disperse a fine martensitic phase into the part corresponding to the lath of a tempered martensitic phase by subjecting a steel slab in which respective contents of C, Si, Mn, And Al are specified to hot rolling, cooling, reheating, and recooling under respectively prescribed conditions. CONSTITUTION:A steel slab having a composition containing, by weight, 0.05-0.3% C,