Most of the fatigue failure of components in aero-structures occurs on its surface or in subsurface *** order to promote the fatigue strength of material or component,more and more attention is paid on surface treatme...
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Most of the fatigue failure of components in aero-structures occurs on its surface or in subsurface *** order to promote the fatigue strength of material or component,more and more attention is paid on surface treatment *** better evaluating the quality of the surface,optimizing the surface process technique and selecting the process parameters,a quantitative characterization method and a relating mathematical model are *** studying the influence of the parameters of the surface modification layer on the fatigue properties of metal components,a parameterized characterization method for rotating-bending fatigue strength of high-strength metal component is proposed and a quantitative mathematical model is *** validation of the model is verified in terms of rotating-bending fatigue testing for M50NiL *** model can be used not only to evaluate the fatigue strength of metal components but also to provide some reference on surface treatment.
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