ADVANCED MATERIALS & PROCESSES | JULY 2026 22 deformation, has played a fundamental role in its durability. At the same time, previous interventions, especially those carried out in the 1990s, contributed to improving both structural performance and corrosion protection. The 2016 intervention further showed that preservation strategies based on material compatibility, controlled repair procedures, and a deep under- standing of historical metallurgy can significantly extend the service life of such structures (Fig. 12). More than a century after its construction, the bridge remains not only as an example of engineering from the past, but also as evidence that understanding materials at their core is essential for preserving them into the future. In addition to its technical significance, the bridge also holds recognized cultural and historical value, having been declared a heritage structure. Certain original elements, such as the telegraph cables, have been preserved as indicators of its historical context, reinforcing its identity as an engineering artifact from another era. Recent interventions, including the installation of LED lighting by the Municipality of Luján de Cuyo, reflect ongoing efforts to maintain the bridge not only as functional infrastructure, but also as part of the region’s cultural landscape. ~AM&P For more information: Patricia Silvana Carrizo, head of archaeometallurgy area, Institute of Materials and Applied Technology, National Technological University, Mendoza Regional Faculty, Argentina, patricia.carrizo@frm.utn.edu.ar. References 1. Mendoza’s Historical Archives, Binder 543 bis, D.3. 2. File data of the Municipality of Luján de Cuyo. 3. ASM Handbook, Volume 9, Metallography and Microstructures, 2004. 4. M. Mattolini, Class Notes and Dissertation about the History of Metallurgy, Mendoza, Argentina, 2013. 5. M. Cavallini, La Scoperta dei Metalli: Mitología e Termodinamica, Enco Journal, Roma, Italia, 12(37), p 25, 2007. GET ENGAGED, GET INVOLVED, GET CONNECTED The ASM Archaeometallurgy Committee is an active group of ASM members with interest and experience in the study and characterization of historic metals and artifacts. Committee projects include developing special journal issues and organizing IMAT conference programming. Members with similar interests are welcome to join. For more information, contact staff liaison Scott Henry, scott.henry@asminternational.org. Fig. 12 — Recent interventions, including the installation of LED lighting, reflect ongoing efforts to maintain the bridge not only as functional infrastructure, but also as part of the region’s cultural landscape. For a view of the bridge after completion of the 2016 restoration work, along with the subsequent installation of LED lighting by the municipal electromechanical team of Luján de Cuyo Municipality, see the following video: Puente de Hierro Luminaria (January 20, 2017), youtube.com/watch?v=-whXpvVzufY.
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