The disclosure mainly relates to a stainless steel sheet containing a minimum of 10.5% by weight of Cr and a maximum of 1.2% by weight of C, the microstructure of which is martensitic or austeno-martensitic and comprises at least 2% by volume of martensite, essentially characterized in that it comprises at least one local portion of lesser mechanical resistance, having a martensitic content at least 10% lower than that of the remainder of said sheet; said local portion being at least partly with a thickness equal to that of said sheet. The disclosure also relates to a method for manufacturing this steel sheet and to a steel part which may be obtained by deformation of this sheet.


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    Title :

    ACIER INOXYDABLE À VARIATIONS LOCALES DE RÉSISTANCE MÉCANIQUE


    Additional title:

    STAINLESS STEEL HAVING LOCAL VARIATIONS IN MECHANICAL RESISTANCE
    EDELSTAHL MIT LOKALEN VARIATIONEN DER MECHANISCHEN BESTÄNDIGKEIT


    Contributors:

    Publication date :

    2018-09-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    French


    Classification :

    IPC:    C21D Veränderung der physikalischen Struktur von Eisenmetallen , MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS / B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL , Bearbeiten oder Verarbeiten von Blechen, Metallrohren, -stangen oder -profilen ohne wesentliches Abtragen des Werkstoffs / B62D MOTOR VEHICLES , Motorfahrzeuge / C22C Legierungen , ALLOYS