Relationship of an Alloy's Mechanical Properties to Its Response to Individual Erosive Particle Impacts

摘要

Deformation accompanying single-particle impacts was studied on selected ductile metals to gain insight into the mechanisms of erosion and erosion-corrosion damage. We examined the effects of heat treatment and prior cold work on crater volumes and geometries left by the impact of hard spherical particles traveling at known velocities. One material was further characterized by hardness measurements in and near impact craters. Individual impact tests were run on a material that had been exposed to multiple-particle impacts in a conventional erosion test apparatus. These test results were used to evaluate current theories on the effects of the properties of target materials on erosion behavior. 20 refs., 9 figs., 4 tabs. (ERA citation 11:036243)