FIELD: metallurgy.
SUBSTANCE: method for obtaining nanostructured surfaces with the shape memory effect on steel surface includes application of powder with the shape memory effect based on Ni on a steel surface, hardening with heating up to 1000°C with subsequent cooling in liquid nitrogen, plastic deformation of the obtained coating in three stages during heating. Each stage of plastic deformation is followed by annealing. The used powder with the shape memory effect contains the following components, wt %: Ni - 41-44, Cu - 5-10, Ti - the rest. Before the coating application, TiNiCu powder is mechanically activated in vacuum. The powder is applied by high velocity oxygen fuel.
EFFECT: obtained TiNiCu coating with the shape memory effect has improved mechanical properties due to an increase of adhesion, coating porousness reduction, and due to nanostructure formation plastic properties of the coating are improved.
5 cl, 1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING NANOSTRUCTURED COATING OF TITANIUM-NICKEL-HAFNIUM WITH HIGH-TEMPERATURE SHAPE MEMORY EFFECT ON STEEL | 2015 |
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| METHOD OF MAKING MULTI-LAYER COMPOSITIVE COATING | 2016 |
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