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Information × Registration Number 0226U000031, (0125U002889) , R & D reports Title Improving the anti-corrosion properties of titanium alloys made by advanced methods of powder metallurgy popup.stage_title Вплив структурно-фазовий стану на зносо- та корозійну тривкість титанових сплавів, виготовлених різними технологіями. Head Lavrys Serhii M., к.т.н. Registration Date 01-01-2026 Organization Physico-Mechanical Institute named after GV Karpenko of the National Academy of Sciences of Ukraine popup.description1 To establish a general correlation between the formation of nitride layers and the different structural phases, in order to regulate the performance of titanium alloys. popup.description2 The influence of gas nitriding combined with strengthening heat treatment at different gas-dynamic pressures (1 Pa and 105 Pa) on structural changes and wear resistance of surface-modified titanium alloys was investigated. According to X-ray phase and metallographic analysis, it was established that after combined nitriding, a hardening ormed on the surface, which consists of TiN mononitride and a subsurface martensite layer induced by deformation of α”-Ti(N) and a diffusion zone. In addition, areas of α-Ti(Al,N) and Ti3Al(N) grains were recorded under the strengthening layer. The thickness of the nitride zone (TiN + α”-Ti(N)) reaches 0.5 μm and 1.5 μm for combined nitriding, which was carried out at nitrogen pressures of 1 Pa and 105 Pa, respectively. It was also found that the depth of the diffusion zone, which was characterized by higher microhardness compared to the matrix, was ~30 μm and ~45 μm, which was probably caused by the diffusion of nitrogen into the primary α-Ti grains. Tribological studies have shown that combined nitriding in a static nitrogen atmosphere (105 Pa) allows for 1-2 orders of magnitude improvement in the wear resistance of titanium alloys under sliding friction conditions. Product Description popup.authors Serhii M. Lavrys Mariia-Olena M. Danyliak popup.nrat_date 2026-01-01 Close