PROCESSO DE ELABORACAO DE PRODUTOS COM UMA CARGA DE RUPTURA DE VALOR MUITO ELEVADO A PARTIR DUM ACO AUSTENITICO INSTAVEL E PRODUTOS OBTIDOS ATRAVES DESSE PROCESSO

PROCESSO DE ELABORACAO DE PRODUTOS COM UMA CARGA DE RUPTURA DE VALOR MUITO ELEVADO A PARTIR DUM ACO AUSTENITICO INSTAVEL E PRODUTOS OBTIDOS ATRAVES DESSE PROCESSO

According to this process the steel is subjected to a first plastic deformation at a temperature above the limiting temperature (Md) of the formation of martensite by deformation and lower than the recrystallisation temperature, and then to a second deformation at a temperature lower than the said t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: JEAN-MICHEL HAUSER
Format: Patent
Sprache:por
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:According to this process the steel is subjected to a first plastic deformation at a temperature above the limiting temperature (Md) of the formation of martensite by deformation and lower than the recrystallisation temperature, and then to a second deformation at a temperature lower than the said temperature (Md). During the second deformation the steel is deformed in a determined range of temperature of the formation of martensite so that, in the case of an additional rational deformation of 0.1, the increase in the content of martensite formed does not at any time exceed 20%.