尽量减少 HCMA 级钢铸造板窄面上的裂缝

IF 1.6 4区 材料科学 Q2 Materials Science
Shubham Kumar, R. K. Rai
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引用次数: 0

摘要

横向角裂纹是高碳和高碳微合金级板坯铸造中最常见的缺陷之一。计算和分析的目的是尽量减少模具振荡的负带时间,负带时间的作用是减少板坯表面形成的振荡痕迹深度。负剥离时间值随着模具振荡频率的增加而减少。根据试验结果,建议将振荡比例从 1.2 调整为 1.25 或 1.3。这一调整将减少振荡痕迹的深度和形成横向裂纹的趋势。对板坯窄面上的横向裂缝进行了裂缝分析和成分分析。微观结构分析表明,裂纹没有分支,内部由铁鳞片组成。此外,还观察到裂纹在同素异形铁素体晶粒间传播。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Minimization of Cracks on the Narrow Face of Cast Slab for HCMA Grade Steel

Minimization of Cracks on the Narrow Face of Cast Slab for HCMA Grade Steel

Transverse corner cracks are among the most common defects in high carbon and high carbon micro-alloyed grade slab casting. Calculation and analysis were done to minimize the negative strip time of mold oscillation, which is responsible for reducing the depth of the oscillation mark formed on the slab surface. The value of negative strip time decreases with an increase in the frequency of mold oscillation. Based on the trial results, it was suggested that the oscillation proportionality be adjusted from 1.2 to either 1.25 or 1.3. This adjustment will reduce the depth of oscillation marks and the tendency to form transverse cracks. The transverse crack on the narrow face of the slab was examined for crack analysis and compositional analysis. Microstructural analysis revealed that the crack has no branching and consists of an iron scale inside it. Furthermore, it is observed that the crack propagates across the allotriomorphic ferrite grains.

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来源期刊
Transactions of The Indian Institute of Metals
Transactions of The Indian Institute of Metals Materials Science-Metals and Alloys
CiteScore
2.60
自引率
6.20%
发文量
3
期刊介绍: Transactions of the Indian Institute of Metals publishes original research articles and reviews on ferrous and non-ferrous process metallurgy, structural and functional materials development, physical, chemical and mechanical metallurgy, welding science and technology, metal forming, particulate technologies, surface engineering, characterization of materials, thermodynamics and kinetics, materials modelling and other allied branches of Metallurgy and Materials Engineering. Transactions of the Indian Institute of Metals also serves as a forum for rapid publication of recent advances in all the branches of Metallurgy and Materials Engineering. The technical content of the journal is scrutinized by the Editorial Board composed of experts from various disciplines of Metallurgy and Materials Engineering. Editorial Advisory Board provides valuable advice on technical matters related to the publication of Transactions.
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