Barkhausen Noise Analysis for Stress Field Evaluation on Bearing Raceway Used in Aeronautic Engine

Article type: Research Article

Authors: Carrerot, H. | Desvaux, S. | Gualandri, J. | Lamare, A.

Affiliations: Company SNFA, ZI No 2 Batterie 900 Rouvignies 59309 Valenciennes, France

Note: [] Corresponding author.

Abstract: SNFA has decided to develop the Barkhausen noise technique in order to determine the state of stresses and the microstructural changes in the contact zones of the bearing raceways and rolling elements. Based on its know-how, its practical experience on site of the X-ray diffraction method and the non-destructive techniques (Micrography, Fluorescent Penetrant Inspection, Magnetic Particle Inspection, Nital Etch and Eddy Current), SNFA is today in a position to officially state the efficiency of the Barkhausen noise technique to estimate the state of stresses in the bearings. A specifically developed software allows us to estimate the residual stress profiles on the following bearing contact zones: raceways after grinding; raceways after prestressing; and raceways after operation on an engine.

Keywords: Barkhausen noise, Residual stresses, X-ray diffraction, Non destructive testing

DOI: 10.1080/10238160108200180

Journal: Journal of Neutron Research, vol. 9, no. 2-4, pp. 481-488, 2001