2026-04-22T12:02:07Zhttps://ebiltegia.mondragon.edu/oai/request

oai:ebiltegia.mondragon.edu:20.500.11984/68622025-01-24T07:15:28Zcom_20.500.11984_473col_20.500.11984_478

Non-destructive procedure to determine residual stresses and white layers in hole making operations Madariaga, Aitor Ortiz-de-Zarate, Gorka ARRAZOLA, PEDRO JOSE Residual stresses White layer X-ray diffraction ODS 9 Industria, innovación e infraestructura ODS 12 Producción y consumo responsables Holes are one of the most critical features of aero-engine components subjected to fatigue loads. Thus, it is essential to ensure a good surface integrity during hole making operations. This work proposes a non-destructive procedure based on X-ray diffraction measurements to determine residual stresses and white layers in holes. Drilling tests were done in Inconel 718 using new and worn tools for different cutting conditions. The results showed that residual stresses can be determined non-destructively with ±150 MPa error. Importantly, Full Width at Half Maximum values showed an unequivocal agreement with the presence of white layer and plastic deformation. 2025-01-23T16:10:48Z 2025-01-23T16:10:48Z 2025 http://purl.org/coar/resource_type/c_6501 0963-8695 https://katalogoa.mondragon.edu/janium-bin/janium_login_opac.pl?find&ficha_no=178823 https://hdl.handle.net/20.500.11984/6862 eng Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ © 2024 The Authors Elsevier