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Design of Stainless Steel Automotive Exhaust Manifolds
Technical Paper
2003-01-2848
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The paper deals with the design of stainless steel exhaust manifolds, focusing on the development of high temperature ferritic grades and their forming capabilities related to the new forming processes, like bending and hydroforming. In particular, it is shown along the presentation, how a niobium stabilized 14%Cr grade can be used in replacement of austenitic grades in many situations of complex shaped manifolds because of its combined improved formability and its high temperature resistance up to 950°C. Finally, authors present a “virtual” thermomechanical fatigue design approach, using a dedicated post processor, which would permit to optimize the design of the fabricated exhaust manifolds, and would reduce the development cost and time by limiting both the number of prototype and motor bench tests and, finally would reduce the risk of failure.
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Citation
SANTACREU, P., CLEIZERGUES, O., SIMON, C., and DUROUX, P., "Design of Stainless Steel Automotive Exhaust Manifolds," SAE Technical Paper 2003-01-2848, 2003, https://doi.org/10.4271/2003-01-2848.Also In
References
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