Crevice corrosion in assembled bronze sculptures is a common issue that can compromise both the structural integrity and aesthetic appeal of the artwork. To prevent this, several effective methods can be employed.

1. Proper Design and Assembly: Ensure tight, seamless joints during assembly to minimize gaps where moisture and corrosive agents can accumulate. Using non-reactive gaskets or sealants can further reduce crevice formation.

2. Regular Cleaning and Maintenance: Clean the sculpture regularly with a mild, non-abrasive solution to remove dirt, salts, and pollutants that accelerate corrosion. Pay special attention to crevices and joints.

3. Protective Coatings: Apply wax or specialized corrosion inhibitors to create a barrier against moisture and oxygen. Reapply these coatings periodically, especially in outdoor or humid environments.

4. Environmental Control: Display bronze sculptures in controlled environments with stable humidity and temperature levels. Avoid placing them near saltwater or industrial areas where corrosive agents are prevalent.

5. Use of Sacrificial Anodes: For large or outdoor sculptures, consider installing sacrificial anodes made of a more reactive metal (like zinc) to divert corrosion away from the bronze.

By implementing these strategies, you can significantly reduce the risk of crevice corrosion and preserve the beauty and longevity of your bronze sculptures.