Микромеханизмы деформации и разрушении слоистого материала из титанового сплава ВТ6 при ударном нагружении

Abstract

The paper studies the phase composition, microstructure. and mechanisms of plastic deformation and fracture under shock loading in a layered material obtained by pressure welding of VT6 titanium alloy sheets. Under shock loading at 20 and 196 {5}C, the material is delaminated into sheet piles and this changes their fracture rate. At fracture surfaces, the initial crystal structure experiences structural phase decomposition resulting in dynamic rotations. In crystalline sublayers of the fracture surfaces and delamination, the material is fragmented. The effects are more pronounced at T =-196 °С.