Abstract

Nonmetallic inclusions in cast and rolled samples of 03X18H10 and 08X18H10T austenitic stainless steel are studied by scanning electron microscopy. In titanium steel, aggregates of titanium nitrides and oxides of different grain size are located around the globular inclusions with the deposition of secondary phase. The inclusions in titanium-free steel are predominantly globular and are complex oxygen compounds. In 03X18H10 steel, there are no large aggregations of nonmetallic inclusions; that results in better surface quality of the cold-rolled sheet. The surface of cold-rolled 08X18H10T steel includes large defects in the form of flakes consisting of titanium nitrides and slag-forming mixture.

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