Precipitation Behavior of Sulfides in Ti-added Ultra Low-carbon Steels in Austenite.

Abstract

The influences of S and Ti contents as well as slab reheating temperature on the precipitation behavior of sulfides in hot-rolled bands in Ti-added ultra low-carbon steels have been investigated. The results obtained are as follows: In the specimens with the same 0.020/ Ti content, Ti4C.S= decreases and TiS increases in numberas S content increasses while in the specimens with the same O.008/ S content, TiS decreases and Ti4C2S2increases in numberas Ti content increases. The number of TiS increases when the slab reheating temperature is high.