Effect of Si and Al on Retained Austenite Stabilization during Q&P and Galvannealing Process

Abstract The present contribution concentrates on the different effects of Si and Al carbide precipitation austenite decomposition during Q&P-process an additional galvannealing treatment up to 560 °C. These have been investigated by dilatometry (derivation relative length change) differential scanning calorimetry (heat flow) tempering. It was possible show beneficial effect retarding in tempered martensite thereby ability stabilize higher amounts retained compared Al. Furthermore, Q&P subsequent could be demonstrated. Here, has benefit increase thermal stability galvannealing.