Fig. 3: Secondary electron microscopy images, EDS mapping and EBSD results.
From: Influence of cementite coarsening on the corrosion resistance of high strength low alloy steel

a, c CaS·xMgO·yAl2O3 inclusions and (b, d) CaS·xMgO·yAl2O3·TiN inclusions. a, b As-received specimen, c, d annealed specimen.