Artists working with bronze and other metals in composite pieces face unique challenges in ensuring material compatibility. The key lies in understanding bronze's properties—its copper content makes it prone to galvanic corrosion when paired with certain metals. To mitigate this, artists often use intermediary layers like epoxy resins or specialized primers to separate incompatible metals.

Alloy selection is critical; silicon bronze is frequently chosen for its weldability with steel, while aluminum bronze offers better compatibility with titanium. Electrochemical considerations guide pairings—metals close on the galvanic series (like bronze and brass) create less corrosion risk than combining bronze with aluminum or zinc.

Surface treatments play a vital role. Artists apply patinas not just for aesthetics but as protective barriers, and use wax or lacquer coatings to prevent moisture-induced reactions. Some incorporate intentional oxidation as part of the design, controlling rust patterns for visual effect while preventing structural damage.

Advanced techniques include bimetallic transition joints created through explosive welding or friction-stir processes, allowing structurally sound bonds between traditionally incompatible metals. Contemporary artists often document their metal combinations and environmental exposure tests to predict long-term behavior, ensuring their mixed-metal creations endure as intended.