| 摘要 |
FIELD: metallurgy.SUBSTANCE: invention relates to deformation-thermal treatment of titanium-nickel-zirconium coatings with shape memory effect, and can be used in metallurgy, machine building and medicine. Method of producing nano-structured coating of titanium-nickel-zirconium with shape memory effect, involving coating surface by means of high-temperature infliction metal powder with shape memory effect and thermo-mechanical treatment of obtained coating that consists of plastic deformation of coating, carried out in stages, and annealing, wherein annealing is performed after each stage of plastic deformation and quenching is performed after stages of thermo-mechanical treatment with subsequent cooling in liquid nitrogen, as powder applied on surface used mixture of titanium (Ti), nickel (Ni) and zirconium (Zr), and application of powder is carried out by diffusion metallization, wherein plastic deformation of obtained coating is carried out in five stages, at first stage in temperature range of 400-450 °C with degree of plastic deformation of ε ≥ 2.5%, at second stage in temperature range of 480-500 °C with degree of plastic deformation of ε ≥ 5%, at the third stage in the range of temperatures 500-520 °C with degree of plastic deformation of ε ≥ 7 % on fourth stage at 520-550 °C with degree of plastic deformation of ε ≥ 12 %, fifth stage is at 550-600 °C with degree of plastic deformation of ε ≥ 15 %.EFFECT: production of nano-structured TiNiZr coating with shape memory effect.3 cl, 1 tbl |
