Abstract
This work studies the stability of residual stresses on cooling blades of electricity generators made of 316L stainless steel subjected to different hours of service. New blades made by stamping were analysed and residual stresses were measured in high-stress areas by finding magnitudes of up to 400 MPa. A finite element simulation was performed to determine the magnitude of the applied stress and measurements were made at the same points on blades of 13.000, 35.000 and 60.000 h of service. It is demonstrated how the location and direction of applied load generates that residual stress decrease while the number of cycles increase, but others, coincident with the points of high applied load the residual stresses increase over time.
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To EAFIT University and the GEMA Research group for economical and technical support with internal projects that allow the realization of this research.
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Morales-Ortiz, A., Arango, J.C., Palacio, C.C. (2021). Evaluation of the Residual Stress Behavior of 316L Stainless Steel in Electric Generator Blades Subjected to Different Hours of Service. In: Abdel Wahab, M. (eds) Proceedings of the 8th International Conference on Fracture, Fatigue and Wear . FFW 2020 2020. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-15-9893-7_25
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DOI: https://doi.org/10.1007/978-981-15-9893-7_25
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