Measurement of residual stresses in the turbine housings of turbochargers
Emission regulations in Europe are extremely stringent and only turbocharged and charged-air-cooled engines are able to comply with current requirements. To meet these performance, durability and legislative conditions, a turbine housing must be capable of operating in harsh environments where vibration is always present and exhaust temperatures can reach 800°C, however many turbine housings are at the limits of operation with regard to strength and durability under these conditions, and failures are recorded on accelerated durability tests. It is now of great importance to understand the fatigue performance of these components and the conditions that determine this performance. In this experiment residual stress measurements will be made of three turbine housings in areas where cracks are commonly observed. We estimate that 4 days of beam time will be required.
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KILCOYNE Susan; GANNON Katy; KIUMARS Shoghi and PIRLING Thilo. (2013). Measurement of residual stresses in the turbine housings of turbochargers. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.1-02-141
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