Influence of the Technology of Obtaining the Material of the Cathode of the Cu – Fe System at the Depth of Penetration of Ions into the Titanium Target

The article presents the results of the influence of the technology of obtaining the material of the cathode of the implanter of the Cu – Fe system on the penetration depth of the titanium alloy VT20. It is shown that the use of 50% Cu – 50% Fe material as the material of the cathode of the implanter, obtained by alloying copper and iron, leads to a better increase in the thickness of the ion-doped layer than the use of the cathode obtained by powder metallurgy.

Influence of the Structural State of Titanium Alloy on the Depth of Penetration of Ions during Implantation

The article presents the results of the influence of the structural state of titanium alloys VT1-0 (α-alloy), VT20 (pseudo-α-alloy), VT6 (α + β) -alloy of the martensitic class) and VT15 (pseudo-β-alloy) on the penetration depth ions of nitrogen, aluminum, copper and the cathode of the alloy 50% Cu – 50% Fe. It is shown that the structural class of titanium alloys selected for the study, when exposed to ion implantation by both gases and metals, does not significantly affect the depth of their penetration.

Influence of the Initial Grain Size on the Structural-Phase State of the VT20 Titanium Alloy Surface after Implantation

The article presents the results of studies of titanium alloy VT20 in ultrafine-grained (UFG), subfine-grained (SMG), fine-grained (MZ) and mesopolycrystalline (MPC) states, obtained, including by methods of plastic deformation and subsequently subjected to ion implantation. The effect of grain size on the structural-phase state of the titanium alloy surface and mechanical properties is shown.

Investigation of the interphase interaction at the interface in the Ti-C system with domestic titanium alloys of the a + β and pseudo a classes

Interaction of the Ti-C with titanium alloys of a + β and pseudo a classes and formation of the reaction layer at the interface have been investigated. We used titanium a + b alloys VT6 (Ti-Al-V) and VT8 (Ti-Al-Mo-Si) as well as pseudo a alloy VT20 (Ti-Al-Zr-Mo-V). The structure and composition of the interfaces were investigated by means of TEM in the scanning beam mode and energy dispersive spectroscopy. It is ascertained that already at the stage of production of the samples by thermal diffusion joining, interphase chemical interaction and formation of the reaction layers occurred. The reaction layer consists of distinct regions of small crystals (nanocrystals TiC of 10-50 nm in size) and large grains of Ti8C5 of 100-500 nm in size. Most of the reaction layer consists of large grains ofTi8C5. It was found that the average thickness of the reaction layer varies depending on the Ti alloy type and is ~0.89 μm (VT6 alloy), ~0.97 μm (VT8 alloy), and ~0.51 μm (VT20 alloy). Additional heat treatment of the samples leads to increasing the thickness of the reaction layer in all Ti-C/Ti alloy systems due to the growth of large grains of titanium carbide.

Formation Structure and Properties of Parts from Titanium Alloys Produced by Direct Laser Deposition

In this article, perspective using of the laser deposition method for manufacture details from the titanium alloy VT20 is considered. Dependence on a structure of the fractional composition is shown. Study of the structure and properties of parts, which were produced by DLD technology using different modes and under different conditions.