Abstract
Erosive wear of working part is an usual damage mode of mechanized equipment in engineering, which is caused by multiple particle impacts with different impact angles and velocities. A test system for plastic metal materials subjected to multi-particle erosion is designed and manufactured. Based on the test system, trial samples of plastic metal materials suffered to multiple particle impacts can be produced via an air ejector, while images of corresponding damage surface can be observed with electron microscope. Erosion experiments of the twice particle erosions in succession were carried out through the experimental system with two different impact angles, i.e. 90° and 30°, and at a fixed impact velocity of 120 m/s. From the experiment results, it can be expected that the experimental system is suitable to laboratory tests of multi-particle erosion for plastic metal materials with reference to practical conditions in engineering.
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