Refinement and Modification of AlO Inclusions in High-Carbon Hard Wire Steel via Rare Earth Lanthanum.

In this paper, an experimental protocol of adding rare earth lanthanum (La) was used to refine and modify inclusions (AlO) in aluminum-deoxidized steel. An optical microscope (OM), a scanning electron microscope (SEM), and an energy dispersive spectrometer (EDS) were used to study the impact of size distribution, number density, distribution uniformity, interfacial distance, area density, and so on of rare earth La on high-carbon hard wire steel inclusions. As indicated by the findings when the addition amount of La is 0.