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<p>The investigation on obtaining composite material based on Ni–Ti–Al system has been carried out in this article. Experimental samples were obtained using two methods: pressing and additive forming. Samples of nickel, titanium and aluminium powders were pressed under a pressure of 4 tons in order to study the physical and mechanical properties of the obtained materials. The concentrations of titanium and aluminium varied from 10 to 20 wt%. The physical and mechanical characteristics of the experimental samples were studied; in particular, the density, Rockwell hardness, Vickers microhardness and flexural strength. It was shown that at a concentration of 20% titanium and aluminium, high values of physical and mechanical properties were obtained, with the bending strength of 810 MPa. In this study, a screw extruder was developed, which enabled the production of 3D-printed products with a small proportion of polymer binder. Using the FDM (fused deposition modelling) method, experimental samples were obtained from a mixture of Ni 80% + (Al + Ti) 20% and its properties were determined. The phase composition of the obtained samples was studied, revealing that the main phases formed during sintering are intermetallic compounds, specifically Ni<sub>3</sub>Al and Ni<sub>3</sub> (Al, Ti).</p>

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Investigation of the intermetallic compounds formation process in Ni–Al–Ti system by the additive method and sintering with disappearing liquid phase

  • 期刊论文

  • 发表日期：

    2026年1月5日

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  • S A Eremin,
  • A A Chuchkov,
  • V N Anikin,
  • A M Kolesnikova,
  • O Yu Kudryashov,
  • V A Bychkov

摘要

The investigation on obtaining composite material based on Ni–Ti–Al system has been carried out in this article. Experimental samples were obtained using two methods: pressing and additive forming. Samples of nickel, titanium and aluminium powders were pressed under a pressure of 4 tons in order to study the physical and mechanical properties of the obtained materials. The concentrations of titanium and aluminium varied from 10 to 20 wt%. The physical and mechanical characteristics of the experimental samples were studied; in particular, the density, Rockwell hardness, Vickers microhardness and flexural strength. It was shown that at a concentration of 20% titanium and aluminium, high values of physical and mechanical properties were obtained, with the bending strength of 810 MPa. In this study, a screw extruder was developed, which enabled the production of 3D-printed products with a small proportion of polymer binder. Using the FDM (fused deposition modelling) method, experimental samples were obtained from a mixture of Ni 80% + (Al + Ti) 20% and its properties were determined. The phase composition of the obtained samples was studied, revealing that the main phases formed during sintering are intermetallic compounds, specifically Ni3Al and Ni3 (Al, Ti).