Effect of galvanizing heat treatments on the microstructure and properties of Al-Si TRIP assisted steels during plastic deformation

Galvanizing is essential for the use of TRIP assisted steels in automotive manufacturing. This requires that heat treatments compatible with the galvanizing process produce not only surfaces with excellent wettability by molten zinc, but also the appropriate microstructure and mechanical properties. Two galvanizable Al-Si TRIP assisted steels were heat treated using the McMaster Galvanizing Simulator. The resulting phase constituents and their …