Non-destructive testing of tungsten alloy penetrator

U.S. defense technology in metallurgy conference held in September 1977, the U.S. Army Ballistic Research Institute published "metallurgical analysis of kinetic energy penetrator bombs tungsten alloy core and non-destructive testing," the papers. The elastic core where the study goose alloy (containing 90% goose, nickel and iron, 3% 7%, powder metallurgy, thermal treatment, machining, and this 12% reduction swaging rod made ​​of a diameter of 23.7 mm when, long 431.8 mm) in the process, found in this sample penetration bomb core and multi-target plate spacing single homogeneous armor Target, often severe fracture.

Thus, the non-destructive testing and destructive testing methods using standard core material for this bomb metallurgical characteristics were analyzed. Studies have shown that non-destructive testing is to detect a bomb core woven together so the whole crack and pore defects very reliable method. Used in non-destructive testing methods and test results are as follows: (1) visual inspection of the surface of the rod visual inspection swaging found serious cracks and chips. 2.X radiographic examination of the test showed that the lever 72, there is no obvious defects 17, the remaining 55 are distributed along the full length of irregular cracks and pores in the size range of 0.39 a 3.18 mm. 5 full-length magnetic particle inspection found on the surface of the rod are showing varying degrees of discontinuities.


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