+高级检索
哈氏合金X电子束表面处理微观组织研究
作者:
作者单位:

1.中国民航大学 天津市民用航空器适航与维修重点实验室;2.中国民航大学

作者简介:

通讯作者:

中图分类号:

基金项目:

中央高校基本科研业务费专项资金项目(项目号3122016L014)


Study on Microstructure of Hastelloy X Modified by High-Current Pulsed Electron Beam
Author:
Affiliation:

1.Tianjin Key Laboratory of Civil Aircraft Airworthiness and Maintenance;2.Civil Aviation University of China

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    哈氏合金因其优良性能被广泛应用于航空工业,利用强流脉冲电子束(HCPEB)轰击哈氏合金X表面对其进行改性,并对其显微组织进行分析和讨论。利用扫描电子显微镜(SEM)观察腐蚀后试样,利用电子背散射衍射(EBSD)观察未腐蚀试样。结果表明:从扫描电镜照片可以看到,未轰击试样晶界被腐蚀,轰击后试样表面存在约为2μm的重熔层,腐蚀程度减轻,晶界处出现颗粒状碳化物;从EBSD结果可知,轰击5次试样晶粒尺寸最小,轰击5次和10次试样晶粒取向性更好,多为[101]和[110]。实验表明强流脉冲电子束轰击能够使哈氏合金X表面出现重熔层,并改变其晶粒大小和晶体取向。

    Abstract:

    Hastelloy is widely used in the aerospace industry for its excellent performance. Hastelloy X surface is modified by high-current pulsed electron beam (HCPEB) bombardment and its microstructure is analyzed and discussed. The sample after corrosion was observed by a scanning electron microscope (SEM), and the unetched sample was observed by electron backscattered diffraction (EBSD). The results show: The grain boundary of the untreated sample was corroded from the SEM micro-morphology. After the bombardment, there was a remelted layer of about 2μm on the surface of the sample. The sample possessed good corrosion resistance and granular carbides appeared at the grain boundary; It can be seen that the grain size of the sample was the smallest in 5 times of bombardment, and the grain orientation of the sample is better in 5 and 10 times of bombardment, mostly [101] and [110]. Experiments show that high-current pulsed electron beam bombardment can cause the remelted layer on the surface of Hastelloy X and change its grain size and crystal orientation.

    参考文献
    相似文献
    引证文献
引用本文

邹慧,唐晓薇.哈氏合金X电子束表面处理微观组织研究[J].稀有金属材料与工程,2020,49(8):2718~2723.[Zou Hui, Tang Xiaowei. Study on Microstructure of Hastelloy X Modified by High-Current Pulsed Electron Beam[J]. Rare Metal Materials and Engineering,2020,49(8):2718~2723.]
DOI:10.12442/j. issn.1002-185X.20190582

复制
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2019-07-11
  • 最后修改日期:2019-12-11
  • 录用日期:2019-12-11
  • 在线发布日期: 2020-09-27
  • 出版日期: