显微CT技术在航天材料中的应用  

Applications of Micro-CT in Aerospace Material Detection

作　　者：陈博 袁生平[1] 金珂[1] 徐林[1] 李俊江 CHEN Bo;YUAN Shengping;JIN Ke;XU Lin;LI Junjiang(Aerospace Research Institute of Materials&Processing Technology,Beijing 100076;Granpect Company Limited,Beijing 100076)

机构地区：[1]航天材料及工艺研究所,北京100076 [2]北京固鸿科技有限公司,北京100076

出　　处：《宇航材料工艺》2021年第2期87-91,共5页Aerospace Materials & Technology

基　　金：国家重点研发计划资助(2017YFF0104105)。

摘　　要：针对目前大型工业CT分辨率受限的问题,本文简述了显微CT技术的概念、原理、技术优势,通过显微CT技术对典型航天材料的检测实例,研究了显微CT技术在小尺寸的航天材料检测中的优势。结果表明,显微CT技术能够发现材料中微米级缺陷,能够观察材料中微小缺陷在空间的形貌及分布,并且能通过图像处理软件统计缺陷的尺寸分布,为航天材料无损检测研究提供了新思路。To overcome the difficulty in microstructure distinction of aerospace materials for their low resolution in industrial-CT,the technology of micro-CT was introduced in this article,the concepts,principles and superiorities of micro-CT were investigated.The advantages of micro-CT in small sample detection were analysed through the micro-CT tests of aerospace materials.The results demonstrate that micro-CT can be able to detect micron-scale defects.The distribution and morpholpgy features of the defects can be observed by micro-CT.In addition,the dimension analysis of the defects can also be counted by using image processing software.Micro-CT can be a new method for nondestructive test of aerospace materials.

关 键 词：显微CT 航天材料 

分 类 号：TP391.[自动化与计算机技术—计算机应用技术]