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Study of the Surface Defect Nature of Hot-Rolled Products in the Edge Zone
Steel in Translation Pub Date : 2020-01-01 , DOI: 10.3103/s0967091220010088
V. V. Naumenko , A. V. Muntin , A. V. Danilenko , O. A. Baranova

Abstract The study results of the edge zone of more than 300 hot-rolled products of steels 09Г2С, 22ГЮ, 20, К56 produced according to the combined technique of smelting, casting, and subsequent rolling in the conditions of casting and rolling complex are presented. Simulation shows that location of imperfections and defects on the slab serves as a prerequisite for defect formation in coil stock. The most common defects include cracks and scabs. The formation of these defects is often associated with the disclosure of oscillation marks during subsequent hot deformation. In such cases, the defect formation nature is difficult to identify by metallographic methods, since signs of the steelmaking nature of their formation are not observed in the cross section of the discontinuity.

中文翻译:

热轧产品边缘区表面缺陷性质的研究

摘要 介绍了在铸轧复合条件下采用冶炼、连铸、连轧相结合工艺生产的300余种09Г2С、22ГЮ、20、К56钢热轧产品边缘区的研究结果。模拟表明,板坯上缺陷和缺陷的位置是形成卷材缺陷的先决条件。最常见的缺陷包括裂纹和结痂。这些缺陷的形成通常与随后的热变形过程中出现振荡痕迹有关。在这种情况下,缺陷形成的性质很难通过金相方法识别,因为在不连续的横截面中没有观察到其形成的炼钢性质的迹象。
更新日期:2020-01-01
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