Addition of alloying agents to improve the performance of Zn/Al metallic coated Steel

塔塔钢铁欧洲公司（TSE）是欧洲第二大预涂钢生产商。为了保持这一地位，该组织不断努力改进现有的产品范围，通过为建筑行业开发一流的涂料，改进服务或增加功能。塔塔钢铁颜色公司生产的大多数优质涂层产品结合了锌/铝金属涂层钢基材和先进的不含铬（VI）的有机涂层，这使得塔塔钢铁可以提供长达40年的保修期。该项目的目的是在Zn/Al涂层中添加不同的合金添加剂，以进一步提高腐蚀性能或在较低涂层厚度下保持性能。项目目标：项目研究的目标将是：将新的合金添加剂（如Mg）引入Zn/Al涂层，并使用SVET和延时图像等分析技术评估其对耐腐蚀性的影响。确定添加到Zn/Al金属涂层中会如何影响有机涂层产品的可涂性、腐蚀性能和耐久性。通过与常规体系的比较，了解改性Zn/Al涂层厚度与腐蚀性能之间的关系。

Tata Steel Europe (TSE) is the second largest producer of pre-painted steel in Europe. To maintain this position, the organisation is constantly trying to improve the current product range, either through the development of best in class coatings for the construction industry, improved offerings in service or through added functionality. The majority of the premium coated products produced by Tata Steel Colors combine Zn/Al metallic coated steel substrate with advanced Cr(VI) free organic coatings, which allows Tata to offer the warranties of up to 40 years.The aim of this project is to add different alloying additives to the Zn/Al coating to further improve corrosion performance or maintain performance at lower coating thickness.Project aims:The project aims of the research will be to :Introduce new alloying additives eg Mg, to Zn/Al coatings and assess their impact on corrosion resistance using analytical techniques such as SVET and time lapse imagery.Determine how additions to the Zn/Al metallic coating would affect the paintability, corrosion performance and durability of organically coated products.Understand the relationship between modified Zn/Al coating thickness with corrosion performance in comparison with conventional systems.