Abstract This study investigates the influence of various microalloying systems (Nb–V–Ti, V–Nb–Ti, V‒N, V–Ti–N, V–Ti) of low-carbon pipe steels on the formation of the microstructure, fine structure, and deposition of dispersive particles in rolled items produced under conditions of endless strip production (ESP) at Vyksa Steel Works in accordance with a combined procedure of melting, casting into thin slab (with the thickness of 90 mm), direct rolling with subsequent accelerated cooling, and coiling into a roll. It has been demonstrated that addition of titanium into steel leads to the formation of particles in austenite region. These particles are coarser in steels with titanium and niobium. In steels with higher nitrogen content fine interphase particles are formed, which are not observed in systems with Nb, V, and Ti. In steels of the Nb–V–Ti, and V‒Nb–Ti microalloying systems no particles with vanadium are observed.

中文翻译：

---

微合金化系统对连续带钢生产条件下生产的卷带钢结构的影响

摘要 本研究研究了低碳管钢的各种微合金化体系（Nb-V-Ti、V-Nb-Ti、V-N、V-Ti-N、V-Ti）对显微组织形成的影响，在 Vyksa 钢厂按照熔炼、浇铸成薄板坯（厚度为 90 毫米）、直接轧制的组合程序，在无头带钢生产 (ESP) 条件下生产的轧件中的精细结构和分散颗粒的沉积随后加速冷却，并卷成卷。已经证明，将钛添加到钢中会导致在奥氏体区域形成颗粒。这些颗粒在含钛和铌的钢中较粗。在含氮量较高的钢中，会形成细小的中间相颗粒，这在含有 Nb、V 和 Ti 的系统中是观察不到的。在 Nb-V-Ti 钢中，