Low carbon martensitic stainless steel 'JFE410DB-ER' with higher heat resistance and corrosion resistance than conventional steels for motorcycle brake disks has been developed. Effects of Nb and N on the heat resistant properties in 12%Cr-1.5%Mn steel were investigated for the purpose of enhancing heat resistance. Addition of Nb introduced fine Nb(C, N), and thereby prevented temper softening. Addition of N decreased the amount of coarse M23C6 and increased the amounts of solute (C + N) and fine Cr2(C, N), and thereby prevented temper softening. Additions of Nb and N maintained proper hardness for rotor materials even after tempering at 550 deg C. Based on these findings, 12%Cr-1.5%Mn-0.13%Nb-0.05%C-0.04%N steel has been developed. The developed steel has excellent durability against temper softening at temperatures exceeding 500 deg C compared with conventional steels. (Engl. translation from JFE Giho No.20 (June 2008), P.47-52 (jap.))


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    Title :

    Martensitic stainless steel "JFE410DB-ER" with excellent heat resistance for motorcycle brake disks


    Additional title:

    Martensitischer nichtrostender Stahl 'JFE410DB-ER' mit ausgezeichneter Hitzebeständigkeit für Motorradbremsscheiben


    Contributors:

    Published in:

    Publication date :

    2008


    Size :

    6 Seiten, 12 Bilder, 2 Tabellen, 6 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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