Scholarlink

<p>Through thermodynamic calculations and experiments, the morphology, composition, size, and type of inclusions in microalloyed C–Mn steel after titanium deoxidation were studied, and the microstructure evolution of the steel before and after titanium addition was also studied. The results indicate that after adding titanium, the microstructure of the steel is significantly refined, and the titanium deoxidation products can be the nucleation site of manganese sulfide and titanium nitride inclusions, or Al<sub>2</sub>O<sub>3</sub> becomes the nucleus of the deoxidation product of Ti in solidification of liquid steel, which form fine dispersed inclusions. These small inclusions can induce acicular ferrite precipitation within the austenite grains, resulting in the refinement of the microstructure.</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

Investigation on the Precipitation Behaviors of Intragranular Ferrite Due to Titanium Oxide in Microalloyed C-Mn Steel

  • 期刊论文

  • 发表日期：

    2025年1月17日

查看全文
  • Xiaofeng Wang,
  • Yijian Zhang,
  • Fei Ding,
  • Xiaojun Zhang,
  • Tao Li

摘要

Through thermodynamic calculations and experiments, the morphology, composition, size, and type of inclusions in microalloyed C–Mn steel after titanium deoxidation were studied, and the microstructure evolution of the steel before and after titanium addition was also studied. The results indicate that after adding titanium, the microstructure of the steel is significantly refined, and the titanium deoxidation products can be the nucleation site of manganese sulfide and titanium nitride inclusions, or Al2O3 becomes the nucleus of the deoxidation product of Ti in solidification of liquid steel, which form fine dispersed inclusions. These small inclusions can induce acicular ferrite precipitation within the austenite grains, resulting in the refinement of the microstructure.