Scholarlink

Abstract <p>Using the transmission electron microscopy method, a quantitative analysis of the change in the fine structure parameters at different distances (0, 2, 10 mm) has been performed along the radius of rounding of the rail head made of hypereutectoid steel after long-term operation (passed tonnage is 234.7 million tons (gross)) on the Transbaikal railway. The morphological components of the structure have been determined: lamellar, destroyed, fragmented pearlite and subgrain structure. The sources of internal stresses have been noted and the sites of microcrack initiation have been identified.</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

Evolution of Dislocation Structure in Hypeutectoid Steel Rail Head during Operation

  • 期刊论文

  • 发表日期：

    2025年2月1日

查看全文
  • N. A. Popova,
  • V. E. Gromov,
  • E. N. Zhirkova,
  • A. A. Serebryakova

摘要

Abstract

Using the transmission electron microscopy method, a quantitative analysis of the change in the fine structure parameters at different distances (0, 2, 10 mm) has been performed along the radius of rounding of the rail head made of hypereutectoid steel after long-term operation (passed tonnage is 234.7 million tons (gross)) on the Transbaikal railway. The morphological components of the structure have been determined: lamellar, destroyed, fragmented pearlite and subgrain structure. The sources of internal stresses have been noted and the sites of microcrack initiation have been identified.