1 Advanced Technology & Materials Co. Ltd, Beijing 100081, China; 2 Beijing Insititute of Space Long
March Vehicle, Beijing 100076, China;3 China University of Labor Relations, Beijing 100048, China
Abstract：Taking molybdenum infiltrated copper (Mo-10Cu) connecting plate used in gas rudder system as the research
object, the discontinuous display phenomenon found in ultrasonic flaw detection of products was analyzed.
The results show that there are micropores with a diameter of about 2~5 μm in the banded area (discontinuous display
area) marked by ultrasonic flaw detection of molybdenum infiltrated copper products, which is the root cause
of discontinuous display of ultrasonic flaw detection. The banded region and the non-banded region have almost
the same microstructure and similar mechanical properties. Suggestions on classification of ultrasonic flaw detection
for molybdenum infiltrated copper products are put forward.
2021, Vol. 31 
