Fracture of Coarse-Grained and Ultrafine-Grained Titanium Upon Quasi-Static and Wave-Impact Loading

Abstract

Results of experimental investigation of the regularities and mechanisms of fracture of coarse-grained and ultrafine-grained titanium upon wave-impact loading, exposure to a nanosecond relativistic high-current electron beam, and quasi-static tension are presented. Results of computer modeling of the shock wave generated upon exposure to the electron beam and of the spalling fracture of titanium targets with coarsegrained and ultrafine-grained structures are presented. The general regularities and special features of fracture are established for both grained structures under quasi-static and wave-impact loading.