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The operating lifetime of mild steel stub ends in anode electrode assemblies for aluminum reduction cells is increased by providing a coating of stainless steel or other corrosion-resistant alloy on the stub end extending upward from its juncture with a carbon block anode in which the stub end is em

The operating lifetime of mild steel stub ends in anode electrode assemblies for aluminum reduction cells is increased by providing a coating of stainless steel or other corrosion-resistant alloy on the stub end extending upward from its juncture with a carbon block anode in which the stub end is embedded. This prevents corrosion and resulting necking down of the stub, which would otherwise occur as a result of exposure of the stub end to fluorine or fluorine containing gases as well as solid particles. The coating may be applied by welding or metalizing procedures.

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In an anode assembly for an aluminum reduction cell having at least one mild steel electrically conductive stub embedded in and extending upward from a carbon block anode disposed in a molten cryolite electrolyte, the improvement comprising: a corrosion resistant metal or alloy coating covering said

In an anode assembly for an aluminum reduction cell having at least one mild steel electrically conductive stub embedded in and extending upward from a carbon block anode disposed in a molten cryolite electrolyte, the improvement comprising: a corrosion resistant metal or alloy coating covering said stub over an area extending upward from said carbon block a distance of approximately 4 to 6 inches.