Galvanic corrosion is a common challenge in mixed-metal sculptures, where dissimilar metals react electrochemically, leading to deterioration. To preserve the integrity and longevity of such artworks, several proven methods can be employed.

1. Material Selection: Choose metals with similar electrochemical potentials to minimize galvanic reactions. For example, pairing stainless steel with titanium reduces corrosion risk compared to combining steel with copper.

2. Dielectric Insulation: Use non-conductive barriers like rubber, plastic, or specialized tapes between dissimilar metals to prevent direct contact and interrupt the electrical circuit causing corrosion.

3. Protective Coatings: Apply paints, powder coatings, or anodized layers to metal surfaces. These coatings act as physical barriers against moisture and electrolytes, which accelerate corrosion.

4. Cathodic Protection: Install sacrificial anodes (e.g., zinc or magnesium) that corrode preferentially, shielding the primary metals. This method is especially useful for outdoor sculptures exposed to harsh environments.

5. Environmental Control: Limit exposure to moisture and salt by placing sculptures indoors or using shelters. Regular maintenance, such as cleaning and reapplying coatings, further mitigates risks.

By combining these strategies, artists and conservators can effectively combat galvanic corrosion, ensuring mixed-metal sculptures remain visually stunning and structurally sound for years.