The polished and etched sections exhibit a complex plessitic matrix with at least two different size orders from the Widmanstätten pattern. The bandwidth of the α axes is typically 80 µm wide and 10-25 or 1-4 times the width, respectively. It also has some large kamacite bands unrelated to the Widmanstätten plessitic pattern, as they are formed by nucleated kamacite bands and growth around schreibersite crystals. The shafts are oriented uniformly in at least two austenite crystals. The kamacites of the axes shows the boundaries of the sub-grain, but no Neumann line. Troilite occurs as few small, spaced nodules. The bandwidth of the kamacite spindles was measured using a composite image obtained under an optical microscope that was connected to a computer and analyzed with the ImageJ software. The size distribution of the bandwidths shows a bimodal distribution of kamacite axes. The large population of kamacite is formed by a single long network of kamacite that borders larger plessite fields, while smaller kamacite fields are more visible associated with small plessite fields. This smaller size of plessitic domains sometimes has an incoherent orientation due to many small phosphide crystals that nucleate kamacite crystals. Source: Zucolotto et al. (2015).