论文部分内容阅读
以09CuPTiRE钢为研究对象,建立钢液凝固过程中溶质偏析和夹杂物析出的耦合热力学模型。利用该模型,研究分析了09CuPTiRE钢凝固过程中稀土与钛的相互作用,得到以下结论:稀土能抑制09CuPTiRE钢中Ti3O5夹杂的析出,当RE含量为0.0045%时,Ti3O5夹杂完全消失;微量稀土有利于09CuPTiRE钢中TiN的析出,随着稀土加入量的增加,对TiN的析出起到抑制作用;钛能抑制09CuPTiRE钢中REN的析出,从而影响凝固过程中RES的析出行为。
Taking 09CuPTiRE steel as the research object, a coupled thermodynamic model of solute segregation and inclusion precipitation during the solidification of molten steel was established. Using this model, the interaction between rare earth and titanium during the solidification of 09CuPTiRE steel was studied and analyzed, and the following conclusions were obtained: The rare earth can inhibit the precipitation of Ti3O5 inclusions in 09CuPTiRE steel. When RE content is 0.0045%, Ti3O5 inclusions disappear completely; Which is conducive to the precipitation of TiN in 09CuPTiRE steel. With the addition of rare earth, the precipitation of TiN can be inhibited. Titanium can inhibit the precipitation of REN in 09CuPTiRE steel and thus affect the precipitation behavior of RES during solidification.