Skip to main content
placeholder image

An in-situ neutron diffraction investigation of martensitic transformation in a metastable ß Ti-10V-2Fe-3Al alloy during uniaxial tension

Journal Article


Abstract


  • The deformation behaviour of a metastable β Ti-10V-2Fe-3Al (wt%) alloy containing ~10 vol% α phase was investigated via single-peak fitting and Rietveld refinement of in-situ neutron diffraction data collected during uniaxial tension. The formation of the 021α″ fibre is related to martensite variant selection during β → α″ transformation under applied load. The β lattice parameter increases by ~0.08% during tension whereas α″ accommodates deformation through a decrease and increase in a and b lattice parameters, respectively. The origin of the variation in α″ martensite lattice parameters with strain for different Ti alloys is linked to their different rhombicity values.

Publication Date


  • 2021

Citation


  • Pinilla Ducreux, C. I., Saleh, A. A., Gazder, A. A., & Pereloma, E. V. (2021). An in-situ neutron diffraction investigation of martensitic transformation in a metastable ß Ti-10V-2Fe-3Al alloy during uniaxial tension. Journal of Alloys and Compounds, 869. doi:10.1016/j.jallcom.2021.159301

Scopus Eid


  • 2-s2.0-85101750764

Web Of Science Accession Number


Volume


  • 869

Abstract


  • The deformation behaviour of a metastable β Ti-10V-2Fe-3Al (wt%) alloy containing ~10 vol% α phase was investigated via single-peak fitting and Rietveld refinement of in-situ neutron diffraction data collected during uniaxial tension. The formation of the 021α″ fibre is related to martensite variant selection during β → α″ transformation under applied load. The β lattice parameter increases by ~0.08% during tension whereas α″ accommodates deformation through a decrease and increase in a and b lattice parameters, respectively. The origin of the variation in α″ martensite lattice parameters with strain for different Ti alloys is linked to their different rhombicity values.

Publication Date


  • 2021

Citation


  • Pinilla Ducreux, C. I., Saleh, A. A., Gazder, A. A., & Pereloma, E. V. (2021). An in-situ neutron diffraction investigation of martensitic transformation in a metastable ß Ti-10V-2Fe-3Al alloy during uniaxial tension. Journal of Alloys and Compounds, 869. doi:10.1016/j.jallcom.2021.159301

Scopus Eid


  • 2-s2.0-85101750764

Web Of Science Accession Number


Volume


  • 869