用无机吸热法改善钢锭的显微组织和偏析

IF 1.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Technology Pub Date : 2023-05-22 DOI:10.1080/02670836.2023.2210913

Yang Xu, Jiang Wang, S. Shuai, Shenghao Yu, Dan-qing Jiang, Chaoyue Chen, T. Hu, Z. Ren

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引用次数: 0

摘要

提出了在钢水中加入无机吸热材料(IHAM)以提高大钢锭质量的新方法。研究发现，IHAM在吸收钢水的热量后，会融化并漂浮起来，从而加速冷却过程。在IHAM的漂浮过程中，夹杂物被吸附，钢水也得到了净化。IHAM棒的加入有利于提高等轴晶比(EGR)和缓解中心碳偏析，而IHAM芯线对降低夹杂物指数的作用更为重要。该方法可以改善凝固后钢锭的显微组织，对大型钢锭的凝固具有广泛的吸引力。

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Improving microstructure and segregation of steel ingot by inorganic heat absorption method

A novel method by adding inorganic heat absorption material (IHAM) into the molten steel was proposed to improve the quality of large steel ingots. The IHAM was found to melt and float up after absorbing the heat of molten steel, stirring the melt and thus accelerating the cooling process. The molten steel was also purified as the inclusions were adsorbed during the floating of IHAM. The addition of IHAM rod was conducive to increase the equiaxed grain ratio (EGR) and alleviate the central carbon segregation, while the IHAM cored wire played a more important role in reducing the inclusion index. This method holds broad appeal to solidification of large steel ingot, as it can improve the microstructure of solidified ingot.

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来源期刊

Materials Science and Technology 工程技术-材料科学：综合

CiteScore

2.70

自引率

5.60%

发文量

审稿时长

3 months

期刊介绍：《Materials Science and Technology》（MST） is an international forum for the publication of refereed contributions covering fundamental and technological aspects of materials science and engineering.