Scholarlink

<p>This study investigates the enhancement of yield strength in medium-manganese steel through the co-addition of Ti and Mo microalloying elements. It also explores the effects of these additions on the microstructure and mechanical properties of the steel. Annealing heat treatments were performed at 650°C, 670°C, and 690°C. The addition of Ti and Mo increases the yield strength by 112–187&#xa0;MPa and the ultimate tensile strength by 147–193&#xa0;MPa, without significantly compromising plasticity. X-ray diffraction results and theoretical analysis of the microstructure approaching equilibrium after critical annealing indicate that Ti and Mo additions reduce the austenite content and improve the mechanical stability of austenite by refining its average grain size.</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

Effect of Ti-Mo Microalloying on the Microstructure and Mechanical Properties of Hot-Rolled Medium Manganese Steel

  • 期刊论文

  • 发表日期：

    2025年10月23日

查看全文
  • Qi Chen,
  • Guanzheng Su,
  • Huaying Li,
  • Fang Huang,
  • Ming Zhao,
  • Yuxiang Li

摘要

This study investigates the enhancement of yield strength in medium-manganese steel through the co-addition of Ti and Mo microalloying elements. It also explores the effects of these additions on the microstructure and mechanical properties of the steel. Annealing heat treatments were performed at 650°C, 670°C, and 690°C. The addition of Ti and Mo increases the yield strength by 112–187 MPa and the ultimate tensile strength by 147–193 MPa, without significantly compromising plasticity. X-ray diffraction results and theoretical analysis of the microstructure approaching equilibrium after critical annealing indicate that Ti and Mo additions reduce the austenite content and improve the mechanical stability of austenite by refining its average grain size.