Reversion of a Parent {130}310α Martensitic Twinning System at the Origin of {332}113β Twins Observed in Metastable β Titanium Alloys

P. Castany, Y. Yang, E. Bertrand, and T. Gloriant
Phys. Rev. Lett. 117, 245501 – Published 6 December 2016

Abstract

In bcc metastable β titanium alloys, and particularly in superelastic alloys, a unique {332}113 twinning system occurs during plastic deformation. However, in situ synchrotron x-ray diffraction during a tensile test shows that the β phase totally transforms into α martensite under stress in a Ti-27Nb (at. %) alloy. {332}113β twins are thus not formed directly in the β phase but are the result of the reversion of {130}310α parent twins occurring in martensite under stress. The formation of an interfacial twin boundary ω phase is also observed to accommodate strains induced during the phase reversion.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 25 July 2016

DOI:https://doi.org/10.1103/PhysRevLett.117.245501

© 2016 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

P. Castany1,*, Y. Yang1, E. Bertrand2, and T. Gloriant1,†

  • 1INSA de Rennes, UMR CNRS 6226 Institut des Sciences Chimiques de Rennes/Chimie-Métallurgie, 20 avenue des Buttes de Coësmes, 35708 Rennes, France
  • 2Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, CNRS, Rue Christian Pauc, 44306 Nantes, France

  • *philippe.castany@insa-rennes.fr
  • thierry.gloriant@insa-rennes.fr

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 117, Iss. 24 — 9 December 2016

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×