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Ageing characterization of exhaust flexible couplings

Francesca Maria Curà,Andrea Mura,Raffaella Sesana-2012-01-01-PORTO Publications Open Repository TOrino (Politecnico di Torino)
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TL;DRAbstract

The aim of this work is to investigate the mechanical strength of automotive exhaust flexible couplings subjected to thermo-mechanical fatigue and corrosion. Five different types of flexible coupling have been considered, realised by four different king of materials: three stainless steels (AISI 309, AISI 321, AISI 321 Ti) and a nickel alloy (Incoloy 825). These components have been tested by a dedicated procedure consisting of different cycles of fatigue, heating and corrosion. Performances of the components have been compared by means of the CTQs approach

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The aim of this work is to investigate the mechanical strength of automotive exhaust flexible couplings subjected to thermo-mechanical fatigue and corrosion. Five different types of flexible coupling have been considered, realised by four different king of materials: three stainless steels (AISI 309, AISI 321, AISI 321 Ti) and a nickel alloy (Incoloy 825). These components have been tested by a dedicated procedure consisting of different cycles of fatigue, heating and corrosion. Performances of the components have been compared by means of the CTQs approach

Keywords

IncoloyMaterials scienceMetallurgyCorrosionAlloyCoupling (piping)Automotive industryCharacterization (materials science)

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