Fabrication of strip or workpiece cut from cold rolled maraging steel and hardened by cold plastic deformation followed by recrystallization annealing treatment

Fabrication of a strip or workpiece cut from a cold rolled maraging steel strip and hardened by heat treatment involves, prior to the heat treatment, subjecting the strip to cold plastic deformation with a rate of strain hardening greater than 30 % and to a recrystallization annealing to obtain a fi...

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Bibliographische Detailangaben
1. Verfasser:	COUTU LUCIEN
Format:	Patent
Sprache:	eng ; fre
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 MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PUNCHING METAL ROLLING OF METAL TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	Fabrication of a strip or workpiece cut from a cold rolled maraging steel strip and hardened by heat treatment involves, prior to the heat treatment, subjecting the strip to cold plastic deformation with a rate of strain hardening greater than 30 % and to a recrystallization annealing to obtain a fine grain with an ASTM index greater than 8. The maraging steel composition comprises, by weight: (a) 12%