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

塔塔钢铁欧洲公司(TSE)是欧洲第二大预涂漆钢生产商。为了保持这一地位，该组织正在不断努力改善目前的产品范围，要么是通过为建筑业开发同类最好的涂料，要么是通过改进服务或通过增加功能。Tata Steel Colors生产的大多数优质涂层产品将锌/铝金属涂层钢基材与先进的无铬(VI)有机涂层结合在一起，使塔塔能够提供长达40年的保修。该项目的目的是在锌/铝涂层中添加不同的合金化添加剂，以进一步改善腐蚀性能或在较低涂层厚度下保持性能。项目目标：本项目的研究目标是：在锌/铝涂层中引入新的合金化添加剂，如镁，并使用SVET和时间推移图像等分析技术来评估其对耐腐蚀性的影响。确定添加到锌/铝金属涂层中对涂装性能的影响有机涂层产品的腐蚀性能和耐久性。通过与传统体系的比较，了解改性锌/铝涂层厚度与腐蚀性能的关系。

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.