A new heat-resistant cast iron alloy has been developed for the exhaust manifolds of new passenger-car diesel engines. This development occurred because operating demands on exhaust manifolds have increased significantly over the past decade. These demands are due to higher exhaust gas temperatures resulting from tighter emission requirements, improved fuel efficiencies, and designs for higher specific engine power. These factors have led to much higher elevated temperature strength and oxidation resistance requirements on exhaust manifold alloys. Additionally, thermal fatigue that occurs directly as a result of thermal expansions and mechanical constraint has become an increasingly important issue.The research detailed in this paper focused on the optimization of the chemical composition of a Si-Mo ductile iron to improve the mechanical and physical properties for use in an engine exhaust manifold. Low cycle fatigue and high temperature oxidation properties were evaluated and found to yield an improved alloy for exhaust manifold applications.


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    Titel :

    Development of a Heat Resistant Cast Iron Alloy for Engine Exhaust Manifolds


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Kim, Hak Jin (Autor:in) / Park, Hyoun Soo (Autor:in) / Lim, Jong Dae (Autor:in) / Kim, Jong Moon (Autor:in) / Ko, Se Jin (Autor:in) / Park, Sung Hwan (Autor:in)

    Kongress:

    SAE 2005 World Congress & Exhibition ; 2005



    Erscheinungsdatum :

    2005-04-11




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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