Miroscale deformation in a two-phase Ti-alloy studied using strain mapping techniques

Rebecca Sandala, Joao Quinta Da Fonseca, Michael Preuss, David Rugg, Kate Fox

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther


The purpose of this study is to investigate the deformation at the micostructural scale in a two-phase titanium alloy. Detailed in situ deformation studies have been carried out on lamellar and bi-lamellar microstructures of Ti-6246. Digital Image Correlation was used to obtain the strain maps from optical images taken during loading where high localised strain was mainly observed close to grain boundary α and in α orientations favourably orientated for slip. It was found on further loading that high strain areas also coincided with slip traces. Several of these slip traces transferred across grain boundary a regardless of the difference in neighbouring orientations. For further clarification CPFEM was used to predict the deformation by creating a virtual microstructure from the EBSD data. Predicted strain maps were then compared to those measured using DIC. Furthermore, studies of the a1 ,a2 and a3 slip will be carried out using EBSD and TEM to clarify why slip occurs in some regions of favourable orientations more than others.

Original languageEnglish
Title of host publicationTi 2011 - Proceedings of the 12th World Conference on Titanium
Number of pages5
Publication statusPublished - 2012
Externally publishedYes
EventThe World Conference on Titanium 2011 - China National Convention Center, Beijing, China
Duration: 19 Jun 201124 Jun 2011
Conference number: 12th

Publication series

NameTi 2011 - Proceedings of the 12th World Conference on Titanium


ConferenceThe World Conference on Titanium 2011
Abbreviated titleTi 2011
Internet address


  • Deformation
  • Digital image correlation
  • Slip
  • Ti-6246

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