Bronze sculptures, revered for their durability and beauty, are not immune to the ravages of time. Structural fatigue in aging bronze artworks often stems from a combination of environmental, chemical, and mechanical factors. One primary cause is corrosion, particularly from exposure to moisture, pollutants, or salt air, leading to surface pitting and weakening of the metal. Over time, stress fractures may develop due to repeated thermal expansion and contraction or physical strain from improper handling.

Another significant factor is metal fatigue caused by microstructural changes, such as crystallization or intergranular cracking, which compromise the sculpture’s integrity. Poor maintenance practices, like infrequent cleaning or the use of harsh chemicals, can accelerate deterioration. Additionally, galvanic corrosion may occur if dissimilar metals are present, creating electrochemical reactions that erode the bronze.

To mitigate these issues, regular inspections, controlled environments, and professional conservation are essential. Understanding these common causes helps preserve these cultural treasures for future generations.