In this paper, by using D6AC steel as the basic compositions and by changing the proportions of sulfur and nitrogen, steels are made to contain eight species of different contents of MnS-TiN inclusions.

• 本文以D_6AC钢为基体,分别改变硫和氮的含量,使钢中含有8种不同含量的MnS+TiN夹杂物。