Abstract

We study the influence of ball burnishing on the surface quality, surface hardening, and structure of the surface layers of Ti–6Al–4V (VT6) titanium alloy. It is shown that the degree of surface hardening of the alloy increases with the load applied in the course of deformation treatment. The degree of hardening and the surface quality after treatment are evaluated. The applied procedure of treatment includes the preliminary cold surface plastic deformation with subsequent thermodiffusion saturation of the surface with nitrogen. It is established that the surface microhardness increases by 2.5 GPa and that the depth of the hardened zone increases by 25 μm.

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