1 Nanostructured Functional Coatings of Iron Family Metals with Refractory. . .
17
Fig. 1.11 Effect of on-time on the composition Fe-Co-Mo alloy at t off = 10 ms; current density i,
A/dm 2 : (a) 2, (b) 3, (c) 5
At current density of 5 A/dm 2 , the content of molybdenum grows proportional
to the pulse duration. The maximum of the molybdenum content is registered at
t on = 20 ms and is 17 Ãt.%. The same path is followed by a reduction in the iron
portion in the coating (Fig. 1.11c). Maximum total content of the alloying components (≥50 Ãt.%) is achieved at ratio t on /t off = 10 ms/10 ms (20 ms/10 ms). At such
coating composition, it is possible to expect that the obtained materials will possess
improved microhardness in combination with the soft magnetic properties [40].
The surface of Fe-Co-Mo coatings (scanning area 39.9 × 39.9 μm) is more
developed and globular compared with the substrate as it follows from AFM 2D
maps analysis [41]. Moreover one can observe the parts of different morphology
(Fig. 1.12).
17
Fig. 1.11 Effect of on-time on the composition Fe-Co-Mo alloy at t off = 10 ms; current density i,
A/dm 2 : (a) 2, (b) 3, (c) 5
At current density of 5 A/dm 2 , the content of molybdenum grows proportional
to the pulse duration. The maximum of the molybdenum content is registered at
t on = 20 ms and is 17 Ãt.%. The same path is followed by a reduction in the iron
portion in the coating (Fig. 1.11c). Maximum total content of the alloying components (≥50 Ãt.%) is achieved at ratio t on /t off = 10 ms/10 ms (20 ms/10 ms). At such
coating composition, it is possible to expect that the obtained materials will possess
improved microhardness in combination with the soft magnetic properties [40].
The surface of Fe-Co-Mo coatings (scanning area 39.9 × 39.9 μm) is more
developed and globular compared with the substrate as it follows from AFM 2D
maps analysis [41]. Moreover one can observe the parts of different morphology
(Fig. 1.12).