What are the implications of metal’s strain aging on the long-term shape retention of animal sculptures?

Metal strain aging is a critical factor influencing the long-term shape retention of animal sculptures. Over time, metals undergo microscopic changes due to internal stresses and environmental exposure, leading to deformation or weakening of structural integrity. This phenomenon, known as strain aging, can cause sculptures to lose their original form, especially in outdoor settings where temperature fluctuations and moisture accelerate the process. Understanding strain aging helps artists and conservators choose durable materials and implement preventive measures, such as protective coatings or reinforced supports, to preserve the sculpture's aesthetic and structural quality for decades. Proper maintenance and material selection are key to mitigating these effects and ensuring the longevity of metal animal sculptures.