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.]
哈氏合金X电子束表面处理微观组织研究
投稿时间:2019-07-11  修订日期:2019-12-11
中文关键词:  强流脉冲电子束  哈氏合金  微观形貌  晶粒尺寸  织构
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)
中文摘要:
      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。
Study on Microstructure of Hastelloy X Modified by High-Current Pulsed Electron Beam
英文关键词:HCPEB  Hastelloy  microstructure  grain size  texture
英文摘要:
      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.
作者单位E-mail
邹慧 中国民航大学 天津市民用航空器适航与维修重点实验室 zh710@sina.com 
唐晓薇 中国民航大学 2903832970@qq.com 
摘要点击次数: 48
全文下载次数: 44
查看全文  查看/发表评论  
关闭