Effects of the superheating degree and cooling intensity on the as-cast microstructure of CP780 thin slab

IF 1.3 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

International Journal of Cast Metals Research Pub Date : 2023-03-11 DOI:10.1080/13640461.2023.2188682

X. Fang, Yonggang Yang, Wangzhong Mu, Xiao-yu Yang, Han-long Zhang, Z. Mi

引用次数: 0

Abstract

ABSTRACT This paper studied the effects of the superheating degree and cooling intensity on the solidification structure of CP 780 slab. The results indicated that the equiaxed crystal ratio decreases with the increase of superheating degree and the cooling intensity. When the superheating degree increases from 15 to 25°C, the equiaxed crystal ratio drops sharply. While the equiaxed crystal ratio decreases slightly with an increasing superheating degree from 25°C to 55°C. It is further revealed that the superheating degree has a greater effect on the equiaxed crystal ratio compared with the influence of cooling intensity. Quantitative analysed the relationship among the equiaxed crystal ratio, the superheating degree and cooling intensity is in line with the Extreme 2D model. The accuracy of the model performance can reach 97.6% when predicting the equiaxed crystal ratio of CSP-CP 780 during CSP process.

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过热度和冷却强度对CP780薄板坯铸态组织的影响

本文研究了过热度和冷却强度对CP780板坯凝固组织的影响。结果表明，等轴晶率随过热度和冷却强度的增加而减小。当过热度从15°C增加到25°C时，等轴晶率急剧下降。当过热度从25°C增加到55°C时，等轴晶率略有下降。结果表明，与冷却强度的影响相比，过热度对等轴晶率的影响更大。定量分析了等轴晶率、过热度和冷却强度之间的关系，符合极限二维模型。当预测CSP过程中CSP-CP780的等轴晶率时，模型性能的准确率可达97.6%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Cast Metals Research 工程技术-冶金工程

CiteScore

2.70

自引率

7.10%

发文量

审稿时长

7.5 months

期刊介绍： The International Journal of Cast Metals Research is devoted to the dissemination of peer reviewed information on the science and engineering of cast metals, solidification and casting processes. Assured production of high integrity castings requires an integrated approach that optimises casting, mould and gating design; mould materials and binders; alloy composition and microstructure; metal melting, modification and handling; dimensional control; and finishing and post-treatment of the casting. The Journal reports advances in both the fundamental science and materials and production engineering contributing to the successful manufacture of fit for purpose castings.