The structure and corrosion performance of nickel-aluminium bronze (NAB) - covered by naval specification DGS-8520 and DGS-348 - have been investigated. No evidence was found to suggest that there would be any significant difference in corrosion performance between alloys meeting the two specifications. Early corrosion problems associated with the weld repair areas of castings have been overcome largely by using improved foundry and welding techniques followed by a heat-treatment procedure. Both crevice and pit corrosion still occur in operating systems. However, recent reports indicate that with improved NAB foundry practice this is less widespread, with penetration often being confined to the surface grains. (DePo)


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    Titel :

    Survey of nickel-aluminium-bronze casting alloys on marine applications


    Weitere Titelangaben:

    Zusammenfassung der Nickel-Aluminium-Bronze Gusslegierungen fuer den Schiffbau


    Beteiligte:
    Weston, G.M. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1981


    Format / Umfang :

    38 Seiten


    Medientyp :

    Report


    Format :

    Print


    Sprache :

    Englisch




    Aluminium bronze alloys for marine service

    Dawson, R.J. | Tema Archiv | 1979



    Nickel bronze in marine engineering

    Engineering Index Backfile | 1939


    Investment casting of aluminium alloys

    Stojanov,P. / Schaedlich-Stubenrauch,J. / Nolte,M et al. | Kraftfahrwesen | 1994


    Welding of aluminium bronze

    Meigh, C.H. | Engineering Index Backfile | 1945