| About this Abstract |
| Meeting |
Materials Science & Technology 2012
|
| Symposium
|
Symposium on the Fatigue of Materials II: Advances and Emergences in Understanding
|
| Presentation Title |
Thermo-Mechanical Fatigue Behavior of a Si-Mo Nodular Cast Iron Alloy |
| Author(s) |
Carlos Engler-Pinto |
| On-Site Speaker (Planned) |
Carlos Engler-Pinto |
| Abstract Scope |
Si-Mo ferritic cast iron alloys (SAE Grades 2 or 3) are the most common material used for exhaust manifold applications. Thermo-Mechanical fatigue is one of the most important failure modes for this application. With recent trends to maximize engine efficiency in order to lower emissions and fuel consumption, the temperature in the exhaust manifolds have been rising and there is a need for a better characterization of its fatigue properties.This paper describes the effect of temperature and strain rate on the mechanical behavior of the SAE Grade 3 material. The implementation of a unified visco-plastic constitutive model is also presented, followed by a discussion of the influence of the constitutive model on the thermo-mechanical fatigue life prediction of exhaust manifold components. |
| Proceedings Inclusion? |
Definite: A combination print-CD volume |