Honeywell Turbo Technologies hopes to produce turbochargers with greater life expectancy and reliability through a project with the High Temperature Materials Laboratory User Program at Oak Ridge National Laboratory. Using neutron diffraction, researchers will map residual stress generated during welding of the shaft wheel assembly that is integral to the Honeywell turbocharger. This information will help determine whether residual stress plays a critical role in limiting the life of the assembly. Tests are being conducted at the Neutron Residual Stress Facility at the High Flux Isotope Reactor. High-performance turbochargers can play a significant role in enhancing fuel efficiency and performance of vehicles.
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