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.

中文翻译：

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表面变形-扩散处理的VT6钛合金的物理力学特性

我们研究了抛光球对Ti-6Al-4V（VT6）钛合金表面质量，表面硬化和表面层结构的影响。结果表明，合金的表面硬化程度随变形处理过程中施加的载荷而增加。评价硬化程度和处理后的表面质量。所应用的处理程序包括初步的冷表面塑性变形，以及随后表面上氮的热扩散饱和。可以确定的是，表面显微硬度增加了2.5 GPa，硬化区的深度增加了25μm。