SUNConferences, COMA '13

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Residual Stress Depth Profiling of Commercially Pure Titanium Subjected to High-Speed Machining Using Energy Dispersive Diffraction
Nickey Janse van Rensburg, Rudolph Laubscher, Daniel Madyira, Gert Adriaan Oosthuizen

Last modified: 2013-08-20

Abstract


Titanium and its alloys have been widely used in aerospace and biomedical applications. The widespread use of this material is mainly due to its excellent mechanical properties, corrosion resistance and biocompatibility. Residual stresses are well-known to influence the mechanical properties of machined components. The magnitude and distribution of these stresses are critical to determine the component life under fatigue loading. High-speed finish and roughing experiments were conducted and analysed using energy dispersive diffraction (EDDI) techniques. EDDI allows for interrogation of residual stress depth profiles of the intermediate surface zone ranging between 10-100μm.The residual stress depth profile of commercially pure (CP) grade 4 titanium (UNS R50700) are presented and discussed.


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