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Experimental Study on Influence of Electropulsing to Microstructural Evolution of Billet

机译：施加施加对坯料微观结构演化影响的实验研究

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This paper studies the influence to the microstructural evolution of low carbon steel and low carbon Nb steel through experiments in order to improve the microstructure of billet. The results of the study show that electropulsing has significant impact on the phase transformation from austenite to ferrite of low carbon steel and low carbon Nb steel, which improves nucleation rate of ferrite inside austenite grain. And it also shows that electropulsing promotes the nucleation and precipitation of NbCN in low carbon Nb steel and a large number of NbCN particles provide the nucleation sites for austenitic → ferritic phase transformation, which improves nucleation rate of ferrite inside austenite grain. The improvement of nucleation rate of ferrite inside austenite grain effectively restrains the formation of pro-eutectoid ferrite momentum at austenitic grain boundaries.
机译：本文通过实验研究了低碳钢和低碳Nb钢的微观结构演化的影响，以改善坯料的微观结构。该研究的结果表明，电禁忌对低碳钢和低碳Nb钢的奥氏体对铁氧体的相变产生显着影响，这提高了奥氏体晶粒内的铁氧体的成核速率。它还表明，电禁止促进NBCN在低碳Nb钢中NbCN的核心和沉淀，大量NbCn颗粒为奥氏体→铁素体相转化提供了核心位点，这提高了奥氏体晶粒内铁氧体的成核速率。奥氏体晶粒内铁素体成核的改善有效抑制了奥氏体晶粒边界的促氮酸铁氧体动量的形成。

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