Metallurgical and Materials Transactions A

, Volume 39, Issue 4, pp 934–944

Deformation Twinning and the Hall–Petch Relation in Commercial Purity Ti

Article

DOI: 10.1007/s11661-007-9442-9

Cite this article as:
Stanford, N., Carlson, U. & Barnett, M. Metall and Mat Trans A (2008) 39: 934. doi:10.1007/s11661-007-9442-9

Abstract

The effect of grain size and deformation temperature on the behavior of wire-drawn α-Ti during compression has been examined. At strains of 0.3, the flow stress exhibited a negative Hall–Petch slope. This is proposed to result from the prevalence of twinning during the compressive deformation. Electron backscattered diffraction revealed that \( \{ 10\ifmmode\expandafter\bar\else\expandafter\=\fi{1}2\} \) was the most prolific twin type across all the deformation temperatures and grain sizes examined. Of the twinning modes observed, \( \{ 11\ifmmode\expandafter\bar\else\expandafter\=\fi{2}2\} \) twinning was the most sensitive to the grain size and deformation temperature. The range of morphologies exhibited by deformation twins is also described.

Copyright information

© The Minerals, Metals & Materials Society and ASM International 2008

Authors and Affiliations

  1. 1.Centre for Material and Fibre InnovationDeakin UniversityGeelongAustralia