Scholarlink

Abstract <p>A comparative analysis of the microstructure of continuously cast large slabs from two manufacturers using different steel casting technologies is presented. The morphological parameters of the slab cast structure, the distribution of allotriomorphic ferrite along the boundaries of prior austenite grains, and the relationship of these parameters with impact toughness are investigated. A quantitative analysis of the microstructural characteristics is performed using OpenCV-based computer vision algorithms. It is found that differences in the thickness and volume fraction of ferrite boundaries between the manufacturers affect the impact work values, as well as the material’s tendency to microdefect nucleation. The obtained results make it possible to evaluate the influence of the cast structure on the formation of the hereditary characteristics of the material, including the development of microcracks along the grain boundaries of the slab microstructure and their propagation during further processing.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Influence of Large-Size Slab Structure on the Quality of Low-Carbon Steel Rolled Products

  • 期刊论文

  • 发表日期：

    2025年8月1日

查看全文
  • A. N. Filatov,
  • E. A. Goli-Oglu,
  • V. V. Naumenko,
  • A. Yu. Kazarin

摘要

Abstract

A comparative analysis of the microstructure of continuously cast large slabs from two manufacturers using different steel casting technologies is presented. The morphological parameters of the slab cast structure, the distribution of allotriomorphic ferrite along the boundaries of prior austenite grains, and the relationship of these parameters with impact toughness are investigated. A quantitative analysis of the microstructural characteristics is performed using OpenCV-based computer vision algorithms. It is found that differences in the thickness and volume fraction of ferrite boundaries between the manufacturers affect the impact work values, as well as the material’s tendency to microdefect nucleation. The obtained results make it possible to evaluate the influence of the cast structure on the formation of the hereditary characteristics of the material, including the development of microcracks along the grain boundaries of the slab microstructure and their propagation during further processing.