Micromechanisms of deformation and fracture in a VT6 titanium laminate under impact load

N. S. Surikova, V. E. Panin, L. S. Derevyagina, R. Ya Lutfullin, E. V. Manzhina, A. A. Kruglov, A. A. Sarkeeva

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

The paper studies the phase composition, microstructure, and mechanisms of plastic deformation and fracture under impact load in a laminate obtained by pressure welding of VT6 titanium alloy sheets. Under impact loading at 20 and -196°C, the material is delaminated into sheet piles with attendant changes in their fracture rate. At fracture surfaces, the initial crystal structure experiences structural phase decomposition which results in dynamic rotations. In fracture and delamination sublayers, the material is fragmented. The effects are more pronounced at Tdef = -196°C.

Original languageEnglish
Pages (from-to)250-260
Number of pages11
JournalPhysical Mesomechanics
Volume18
Issue number3
DOIs
Publication statusPublished - 24 Jul 2015

Keywords

  • fragmentation in sublayers
  • impact loading at 20 and -196°C
  • laminate
  • structural decomposition at fracture surfaces
  • titanium alloy

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Mechanics of Materials
  • Materials Science(all)

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