Corrosion resistant spacer

An interface device insertable at a junction between a first metal and a second metal dissimilar to the first metal, the interface device comprising alloys of the first metal and the second metal having a functionally gradient composition operative to reduce a galvanic effect between the first and second metals.

Method for inhibiting galvanic corrosion proximal to a junction between devices comprising respective first and second dissimilar metals, comprising

• composing a functionally gradient interface device comprising a plurality of layers of alloys comprising the first dissimilar metal and the second dissimilar metal;
• and,
• interposing the interface device into the junction between the devices comprising dissimilar metals.

Method for inhibiting galvanic corrosion proximal to a junction between devices comprising first and second dissimilar metals, comprising:

• interposing a functionally gradient alloy composition of the first metal and the second metal operative to reduce a galvanic effect between the first and second metals.

Method for inhibiting galvanic corrosion proximal to a junction between devices comprising first and second dissimilar metals, comprising:

• interposing a functionally gradient interface device comprising a plurality of layers of alloys comprising the first dissimilar metal and the second dissimilar metal into the junction between the devices.