Redistribution of carbon and other elements, and formation of the structure, composition, and properties of low-carbon Nb, Nb–Ti, Nb–V, Nb–V–Mo and Ti–Mo microalloyed steels during hot rolling is studied using metal of five laboratory melts. It is established that by selecting the temperature for the beginning of rolling in the finishing group of stands according to steel composition (microalloying system) it is possible to achieve a significant improvement in the homogeneity of the composition, structure, and set of rolled product properties. Therefore, it is demonstrated by experiment that chemical and structural heterogeneity of metal formed in the billet casting stage may be largely eliminated during hot rolling on the basis of controlling carbide (carbonitride) precipitate formation.

中文翻译：

---

提高铁素体类热轧钢化学和结构均匀性的条件研究

碳和其他元素的重新分布，以及低碳 Nb、Nb-Ti、Nb-V、Nb-V-Mo 和 Ti-Mo 微合金钢在热轧过程中的组织、成分和性能的形成五个实验室熔体。确定通过根据钢成分（微合金化体系）选择精轧机组开始轧制的温度，可以显着改善成分、组织和轧制产品性能的均匀性。 . 因此，实验证明，在控制碳化物（碳氮化物）析出物形成的基础上，在热轧过程中可以很大程度上消除铸坯阶段形成的金属的化学和结构不均匀性。