The fatigue life decreases with the increase in a p because with the increase in a p , the overall roughness of the machined surface shows an increasing trend; the rougher the machined surface topography, the more defects on the machined surface, the crack source on the surface increases correspondingly, and the fatigue life of the test piece decreases accordingly.
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Effect of Cutting Surface Integrity on Fatigue Properties of TC17 Titanium Alloy.
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