Abstract
To study the malfunction cause and wear mechanism of aluminum brass in gun recoil brake, based on microscopic analysis technology, scrapped throttling ring from the repair facility as research objects, the throttling ring wear mechanism is analyzed systematically from the microscopic point integrated use of metallurgical microscope analysis, scanning electron microscopy and energy dispersive spectrometer analysis. Studies show that, as one of the vital components in recoil brake, the throttling ring made of aluminum brass is due to the composite role of erosive abrasion, chemical corrosion and cavitation damage leading to failure. The method can provide reference for the improvement of the throttling ring and the failure analysis of similar alloy parts.
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