Preliminary Evaluation of a Low-Cost Cast Iron for Exhaust Manifold and Turbocharger Applications

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. Unfortu...

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Bibliographic Details
Published inSAE International journal of materials and manufacturing Vol. 3; no. 1; pp. 413 - 424
Main Authors Dunlap, William (Jud), Druschitz, Alan
Format Journal Article
LanguageEnglish
Published SAE International 01.01.2010
Subjects
Carbides
Cast iron
Graphite
Heat treatment
High temperature
Iron
Molybdenum
Pig iron
Silicon
Titanium
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Summary: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.
Bibliography:2010-04-13 ANNUAL 174509 Detroit, Michigan, United States
ISSN:1946-3979
1946-3987
1946-3987
DOI:10.4271/2010-01-0657