Scholarlink

Abstract <p>To determine the nature of the impact toughness values scattering during multiple Charpy impact tests, fractographic and microstructural studies of the fracture mechanisms of low-carbon, low-alloy hot-rolled steel samples were conducted. It was found that the factor determining the fracture mechanisms is the formation of martensite-bainite interlayers in the Mn, Si, and P axial segregation region. On one hand, these interlayers initiated transcrystalline cleavage, and on the other hand, they served as sites for grain-boundary splitting occurrence.</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

Study of the Impact Toughness Values Scattering Mechanisms of Hot-Rolled Low-Carbon Low-Alloy Steel Based on the Results of Multiple Charpy Impact Tests

  • 期刊论文

  • 发表日期：

    2026年2月19日

查看全文
  • K. G. Vorkachev,
  • V. A. Bozhenov,
  • K. A. Solntsev

摘要

Abstract

To determine the nature of the impact toughness values scattering during multiple Charpy impact tests, fractographic and microstructural studies of the fracture mechanisms of low-carbon, low-alloy hot-rolled steel samples were conducted. It was found that the factor determining the fracture mechanisms is the formation of martensite-bainite interlayers in the Mn, Si, and P axial segregation region. On one hand, these interlayers initiated transcrystalline cleavage, and on the other hand, they served as sites for grain-boundary splitting occurrence.