The composition dependence of ferrite growth kinetics in Fe-C-X ternary alloyed steels, where X = Ni, Mn, Mo, Cr, Si, was investigated using a high-throughput approach. Compositionally graded samples were subjected to situ time- and space-resolved X-ray diffraction during intercritical annealing. To this end, diffusion couples created between binary Fe-C different alloys, hot uniaxial compressi...