On the potential of magnetron sputtering for manufacturing of thin high Mn TWIP steel foils

In this study, magnetron sputtering was used to manufacture 30 μm 25Mn-3Si-3Al steel foils and the influence of the process characteristics, in particular the target power, the roughness of the substrate and several annealing treatments on the tensile properties and the microstructure of theses foils was investigated. Scanning electron microscopy was employed to reveal the changes of morphology while the evolution of the microstructure and dislocation density were followed by x-ray diffraction.