FEATURE ADVANCED MATERIALS & PROCESSES | SEPTEMBER 2023 49 11 checked: the stress intensity and the stress depth. Check the planned and effective hardness curve regarding both of these parameters and the loading levels, or make sure it is confirmed by the manufacturer. ~HTPro Note: This heat treat article was excerpted from Failures of Rolling-Element Bearings and Their Prevention[5] by Pierre Dupont, from ASM Handbook, Volume 11A, Analysis and Prevention of Component and Equipment Failures. References 1. M. Albert and H. Köttritsch, Wälzlager: Theorie und Praxis, Springer Verlag, Vienna, Austria, 1987, https://doi. org/10.1007/978-3-7091-8913-9. 2. A. Mendelsen, Plasticity: Theory and Applications, McMillan, New York, NY, 1968. 3. M.R. Hoeprich and R.L. Widner, Environmental Factors and Bearing Damages, SAE Paper 800678, Society of Automotive Engineers, Warrendale, PA, 1980, https:// doi.org/10.4271/800678. 4. T.L. Carter, E.V. Zaretsky, and W.J. Anderson, Effect of Hardness and Other Mechanical Properties on RollingContact Fatigue Life of Four High-Temperature Bearing Steels, NASA TN D-270, National Aeronautics and Space Administration, Washington, D.C., 1966. 5. P. Dupont, Failures of Rolling-Element Bearings and Their Prevention, Analysis and Prevention of Component and Equipment Failures, Vol 11A, ASM Handbook, ASM International, p 445–496, 2021, https://doi.org/10.31399/ asm.hb.v11A.a0006834.
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