Preliminary Evaluation of a Low-Cost Cast Iron for Exhaust Manifold and Turbocharger Applications 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.
SAE International Journal of Materials and Manufacturing-V119-5, Advances In Light Weight Materials – Aluminum, Casting Materials, and Magnesium Technologies, 2010-SP-2294, SAE International Journal of Materials and Manufacturing-V119-5EJ