The Electrodeposition of Nickel-Molybdenum Alloys

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Abstract
Pyrophosphate solutions have been used for the successful deposition of iron‐molydenum and cobalt‐molybdenum alloys. This investigation shows that a similar bath can be used to deposit nickel‐molybdenum alloys. Hydrazine sulfate was added to prevent anodic oxidation of Ni (II). This greatly improved the cathode current efficiency, but lowered the molybdenum content of the deposits. Efficiency is further increased by wiping the cathode during plating. The average content of the deposits was about 60% molybdenum, 35.5% nickel, 4.5% nonmetallic material. The cathode current efficiency was about 37.5%. The deposits were bright and adherent.

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