金属热处理 ›› 2025, Vol. 50 ›› Issue (4): 28-33.DOI: 10.13251/j.issn.0254-6051.2025.04.004

• 高熵合金 • 上一篇    下一篇

球磨工艺和退火处理对机械合金化制备FeCrNiMo高熵合金粉末微观结构的影响

伽亮亮1, 张金伟2, 赵奔奔2, 张曼1,2   

  1. 1.湖北工程学院 化学与材料科学学院, 湖北 孝感 432000;
    2.武汉轻工大学 土木工程与建筑学院, 湖北 武汉 430023
  • 收稿日期:2024-11-14 修回日期:2025-02-20 发布日期:2025-06-13
  • 通讯作者: 张 曼,讲师,博士,E-mail:manzhangmz@126.com
  • 作者简介:伽亮亮(1986—),男,硕士,主要研究方向为材料加工,E-mail:qieliang1010@163.com。
  • 基金资助:
    国家自然科学基金(52001118);湖北省教育厅科学研究计划科技创新服务项目(F2023019);孝感市自然科学计划项目(XGKJ2022010086)

Influence of ball milling process and annealing treatment on microstructure of FeCrNiMo high-entropy alloy powder via mechanical alloying

Qie Liangliang1, Zhang Jinwei2, Zhao Benben2, Zhang Man1,2   

  1. 1. School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan Hubei 432000, China;
    2. School of Civil Engineering and Architecture, Wuhan Polytechnic University, Wuhan Hubei 430023, China
  • Received:2024-11-14 Revised:2025-02-20 Published:2025-06-13

摘要: 采用机械合金化制备FeCrNiMo高熵合金粉末,研究了球磨过程控制剂添加量、球磨时间和退火处理对FeCrNiMo高熵合金粉末的制备和其微观结构的影响。结果表明,在球磨过程中加入适量质量分数的无水乙醇可以提升高熵合金粉末经机械合金化后的出粉率。随着球磨时间的延长,衍射峰峰位出现偏移,峰形变宽,高熵合金粉末发生冷焊现象。当球磨50 h时,峰形基本不再发生改变,高熵合金粉末颗粒分布较均匀,且具有较好的细化效果。FeCrNiMo高熵合金粉末经400、500和600 ℃退火1 h后,粉末相组成未发生改变,仍由FCC+BCC相组成。随着退火温度的继续升高,高熵合金粉末中析出Co7Mo6和Mo1.24Ni0.76相,且粉末颗粒团聚增大。

关键词: 高熵合金, 机械合金化, 球磨工艺, 退火

Abstract: FeCrNiMo high-entropy alloy powder was prepared via mechanical alloying, and the effects of ball milling control agent content, milling time and annealing on the preparation and microstructure of the FeCrNiMo high-entropy alloy powder were investigated. The results show that the addition of an appropriate mass fraction of anhydrous ethanol during the ball milling process improves the powder productivity after mechanical alloying of the high-entropy alloy powder. With the extension of ball milling time, the diffraction peak position shifts, and the peak broadens due to the occurrence of cold welding in the high-entropy alloy powder. After ball milling for 50 h, the peak shape nearly remains unchanged, the distribution of high-entropy alloy powder particles becomes more uniform, and a good refinement effect is achieved. After annealing at 400 ℃, 500 ℃, and 600 ℃ for 1 h, the phase composition of the FeCrNiMo high-entropy alloy powder remains unchanged and still consists of FCC and BCC phases. With the annealing temperature further increases, Co7Mo6 and Mo1.24Ni0.76 phases precipitate in the high-entropy alloy powder, and the powder particles agglomerate and increase in size.

Key words: high-entropy alloy, mechanical alloying, ball milling process, annealing

中图分类号: