Investigation of rust layer on low alloy steel with 0.40 wt% Sn in a rural atmospheric environment

This study investigates the formation and properties of rust layers on low alloy steel containing 0.40 wt% tin (Sn) in rural atmospheric environments. The rust layer was analyzed using various techniques, including scanning electron microscopy, X-ray diffraction and Raman spectroscopy. Additionally, a new corrosion big data sensor was used to evaluate the corrosion resistance of Sn-containing low alloy steels. Results show that the presence of Sn in the low alloy steel positively affects corrosion resistance, resulting in the formation of a denser and more protective rust layer. The corrosion big data technology is a precise and intuitive approach for identifying the subtle impact of Sn on the corrosion resistance of low alloys. These findings offer insights into the mechanisms behind the corrosion resistance of low alloy steels in rural atmospheric environments and highlight the potential of Sn as an effective alloying element for improving the corrosion resistance of such structural materials.