Effect of annealing on the structure and mechanical properties of the maraging steel N9K17M14-nanoamorphous alloy Co69Fe4Cr4Si12B11 composite material

The effect of annealing on the structure, mechanical properties, and fracture of a one-dimensional composite material consisting of a microwire made of maraging N9K17M14 steel with a surface layer of a eutectic soft magnetic Co₆₉Fe₄Cr₄Si₁₂B₁₁ alloy is studied. The optimum temperature of annealing of the composite material is found; as a result, high strength characteristics are achieved at good plasticity. The composite material with a nanoamorphous layer is shown to have the high strength characteristics of the matrix maraging steel at significantly higher plasticity. When the Co₆₉Fe₄Cr₄Si₁₂B₁₁ alloy is deformed in the composition of the composite material, it exhibits a plasticity effect, and this alloy fails in a brittle manner when deformed in the form of a wire or a ribbon. This effect becomes more pronounced upon annealing.