Analyzing Deformation and Damage of VT1-0 Titanium in Different Structural States by Using Infrared Thermography

Yu P. Sharkeev, Vladimir Platonovich Vavilov, O. A. Belyavskaya, V. A. Skripnyak, D. A. Nesteruk, A. A. Kozulin, V. M. Kim

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

This study is devoted to the comparison of strength characteristics in the process of deformation and damage of axially strained VT1-0 titanium in the ultrafine-grained (UFG) and coarse-grained (CG) states. The temperature distributions on the surface of titanium specimens were recorded by means of IR thermography. The VT1-0 titanium in UFG state formed by applying severe plastic deformation is characterized by twice the yield stress and strength limit but half the deformation limit compared to CG titanium. The fracture of CG titanium is accompanied by local powerful generation of heat, while, in UFG titanium, the damage nuclei are less intense and more evenly distributed over the fracture cross-section. The titanium in UFG state, being deformed, utilizes structural channels of energy absorption more efficiently than in the CG state by involving the whole deformed volume in the fracturing process.

Original languageEnglish
Article number42
JournalJournal of Nondestructive Evaluation
Volume35
Issue number3
DOIs
Publication statusPublished - 1 Sep 2016

Keywords

  • Infrared thermography
  • Strength characteristics
  • Tensile test
  • Ultrafine-grained titanium

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials

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