Deformation of a Ti-Nb alloy containing α'-martensite and omega phases
- Fort Wayne Metals Research Products Corporation, 9609 Ardmore Ave., Fort Wayne, Indiana 46809 (United States)
- Advanced Photon Source, Argonne National Laboratory, 9700 S. Cass Ave., Argonne, Illinois 60439 (United States)
Microscopic deformation of a Ti-17at. %Nb alloy with high fractions of α″-martensite and ω phases was studied by in-situ synchrotron X-ray diffraction. Textures, phase fractions, individual lattice strains, and peak intensities during deformation were studied. It is found that, to accommodate the external tensile strain, some of the α″ and ω grains were first transformed to the β-phase, which then continuously transformed to the α″-phase with chosen variants that effectively accommodate the deformation strain. A strong (010){sub α″} fiber texture was formed at the expense of the (001){sub α″} and (111){sub α″} fiber textures. Above 400 MPa applied stress, (110){sub α″} deformation twinning was triggered with a simultaneous stress relaxation in the (110){sub α″} family and a slight increase in its texture strength in the loading direction.
- OSTI ID:
- 22398813
- Journal Information:
- Applied Physics Letters, Vol. 106, Issue 13; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
Twinning behavior of orthorhombic-α” martensite in a Ti-7.5Mo alloy
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journal | April 2019 |
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