Ripken, John F.Killen, John M.Crist, Scott D.2011-08-302011-08-301965-03https://hdl.handle.net/11299/114100For nearly forty years various investigators have attempted to develop and routinely employ test procedures which would realistically evaluate the service resistance of fabricated materials exposed to erosion by water impact. These evaluations were necessary for the design selection of materials for steam turbine blades, for hydraulic machinery, and more recently for underwater ship appendages and for aircraft windshields.en-USReport