金属热处理 ›› 2022, Vol. 47 ›› Issue (1): 245-249.DOI: 10.13251/j.issn.0254-6051.2022.01.040

• 工艺研究 • 上一篇    下一篇

退火和退火-时效工艺对热轧中锰钢组织及性能的影响

白韶斌1, 肖文涛1, 牛伟强1, 梁伟1, 李大赵2   

  1. 1.太原理工大学 材料科学与工程学院, 山西 太原 030024;
    2.中北大学 材料科学与工程学院, 山西 太原 030051
  • 收稿日期:2021-07-30 修回日期:2021-09-28 出版日期:2022-01-25 发布日期:2022-02-18
  • 通讯作者: 梁 伟,教授,主要研究方向为镁合金、不锈钢和高强钢组织及性能调控,E-mail: liangwei@tyut.edu.cn
  • 作者简介:白韶斌(1989—),男,博士研究生,主要研究方向为高强钢组织及性能调控,E-mail:sh1989bedu@163.com。
  • 基金资助:
    山西省自然科学基金(201801D121105)

Influence of annealing and annealing-aging process on microstructure and mechanical properties of hot-rolled medium manganese steel

Bai Shaobin1, Xiao Wentao1, Niu Weiqiang1, Liang Wei1, Li Dazhao2   

  1. 1. School of Materials Science & Engineering, Taiyuan University of Technology, Taiyuan Shanxi 030024, China;
    2. School of Materials Science & Engineering, North University of Technology, Taiyuan Shanxi 030051, China
  • Received:2021-07-30 Revised:2021-09-28 Online:2022-01-25 Published:2022-02-18

摘要: 分别采用退火和退火-时效工艺来调控热轧态Fe-10.2Mn-0.41C-2.2Al-0.6V中锰钢中的奥氏体体积分数、奥氏体稳定性及VC析出来优化中锰钢的力学性能组合。结果表明,经退火-时效热处理后试验钢的屈服强度、抗拉强度和伸长率均获得提升。大量的纳米级VC颗粒是促进中锰钢屈服强度增加的主要因素。

关键词: 中锰钢, 时效工艺, 奥氏体, 加工硬化

Abstract: The annealing and annealing-aging processes are employed to control the austenite volume fraction,austenite stability, and VC precipitates in hot-rolled Fe-10.2Mn-0.41C-2.2Al-0.6V medium manganese steel to optimize the mechanical property combination, respectively. The results show that the yield strength, tensile strength and total elongation of the annealed-aged medium manganese steel are obviously improved. A large amount of nano VC particles are the main factor for increasing the yield strength.

Key words: medium manganese steel, aging process, austenite, work hardening

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