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Preliminary Evaluation of a Low-Cost Cast Iron for Exhaust Manifold and Turbocharger Applications
ISSN: 1946-3979, e-ISSN: 1946-3987
Published April 12, 2010 by SAE International in United States
Citation: Dunlap, W. and Druschitz, A., "Preliminary Evaluation of a Low-Cost Cast Iron for Exhaust Manifold and Turbocharger Applications," SAE Int. J. Mater. Manuf. 3(1):413-424, 2010, https://doi.org/10.4271/2010-01-0657.
Exhaust manifolds and turbocharger housings require good elevated temperature strength, good resistance to thermal fatigue and a stable microstructure. High silicon ductile iron, high silicon-molybdenum ductile iron and Ni-resist (a high nickel ductile iron) are the cast materials of choice. Unfortunately, molybdenum and nickel are expensive. In this study, a lower cost, high silicon-titanium, compacted graphite iron was developed and compared to high silicon ductile iron and higher cost, high silicon-molybdenum ductile iron. Room and elevated temperature strength data is presented.