Intergranular Stress Evolution in Titanium Studied by Neutron Diffraction and Self-consistent Modelling

Article type: Research Article

Authors: Oliver, E.C.^; | Daymond, M.R. | Quinta Da Fonseca, J. | Withers, P.J.

Affiliations: ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot OX11 0QX, UK | Manchester Materials Science Centre, University of Manchester, Grosvenor Street, Manchester, M1 7HS, UK

Note: [] Corresponding author. E-mail: e.c.oliver@rl.ac.uk

Abstract: Neutron diffraction measurements of intergranular strain development in IMI 125 commercially pure titanium were recorded during uniaxial loading at temperatures between room temperature and 380°C. An elastoplastic self-consistent (EPSC) model was used to elucidate information about the operative deformation modes. Activation of {1012} 〈1011〉 twinning was observed to limit the build up of intergranular stresses at all temperatures.

Keywords: Neutron diffraction, Intergranular stresses, Titanium, Self-consistent model

DOI: 10.1080/10238160410001734423

Journal: Journal of Neutron Research, vol. 12, no. 1-3, pp. 33-37, 2004