Studying the Peculiarities of Steel Grinding Balls Structuring

When studying a large number of steel grinding balls, which were destroyed in the course of delivery tests, an atypical structure of the balls’ central zone was detected. Namely, the presence of sites with the martensitic structure, while the main troostite structure was preserved. The balls were manufactured using the cross rolling technology. We studied the structure of the destroyed balls, as well as the composition and the structure of continuous cast billets, from which the balls were manufactured.