Effect of dew point on the reactive wetting of a C-2Mn-1.3Si (wt%) advanced high strength steel during continuous galvanizing

The effect of oxygen partial pressure on the reactive wetting of a Fe-0.1C-2Mn-1.3Si (wt%) advanced high strength steel during continuous galvanizing was determined. The steel was intercritically annealed at 1093 K (820 °C) for 120 s in a N2–5 vol% H2 process atmosphere, where the oxygen potential was controlled by varying the process atmosphere dew points at 223 K (−50 °C), 243 K (−30 °C) and 278 K (+5 °C). All samples were immersed in a …