• CN：11-2187/TH
  • ISSN：0577-6686
机械工程学报

›› 2005, Vol. 41 ›› Issue (3): 81-85.

• 论文 • 上一篇    下一篇

扫码分享

纳米Fe3Al粉体及块体材料的制备及表征

李嘉;尹衍升;郝春成   

  1. 济南大学材料科学与工程学院;中国海洋大学材料研究院;青岛科技大学材料与环境科学学院
  • 发布日期:2005-03-15

SYNTHESIS AND CHARACTERISTICS OF NANO BULK Fe3Al INTERMETALLLIC ALLOY

Li Jia;Yin Yansheng;Hao Chuncheng   

  1. College of Materials Science and Engineering, Jinan University School of Materials Science and Engineering,China Ocean University College of Materials and Environmental Science, Qingdao University of Science and Technology
  • Published:2005-03-15

PDF

163

摘要： 分别利用氢电弧等离子体法及机械合金化制取纳米Fe3Al粉体。氢电弧等离子体法制备的纳米Fe3Al粒子为球形, 粒径为50～100 nm，粒度分布较均匀，呈部分有序的B2相结构。由机械化合金化制得的Fe3Al粉体存在着较高的缺陷浓度及晶格畸变。热压烧结制备Fe3Al块体材料的洛氏硬度为61 HRC，室温抗弯强度和断裂韧度分别高达1 300 Mpa和49 Mpa·m1/2。

关键词: 金属间化合物, 纳米, 热压烧结

Abstract: Fe3Al nano-powder were synthesized by hydrogen arc plasma method and mechanical alloying (MA), respectively. The Fe3Al power prepared by hydrogen arc plasma method had B2 structure, with gain size of 50～100 nm and sphericity appearance. Compared with the Fe3Al power prepared by MA had higher concentration of defect and crystal lattice distortion than the power gained by hydrogen arc plasma method. The hardness (HRC), room bending strength and fracture toughness of hot-pressed sintered bulk Fe3Al are 61, 1 300 Mpa and 49 Mpa m1/2, respectively.

Key words: HP sintering, Intermetallic, Nanon

中图分类号: 

版权所有 © 2019 《机械工程学报》编辑部 | 京ICP备05055788号-30