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Nanoscale mechanism and intrinsic structure related deformation of Ti-alloys
- Source :
-
Materials Science & Engineering: A . Oct2008, Vol. 493 Issue 1/2, p71-78. 8p. - Publication Year :
- 2008
-
Abstract
- Abstract: A series of Ti–Nb–Ta–(In/Cr) and Ti–Fe–(Sn) alloys containing a bcc β-Ti phase with a grain size ranging from the nanometer/ultrafine regime to the micrometer scale has been prepared by slow cooling from the melt. The plastic deformation behavior has been investigated under compression and the deformation-induced microstructure evolution was checked by X-ray diffraction, scanning and transmission electron microscopy. The data reveal that the underlying mechanisms related to plasticity or brittleness of the β-phase depends significantly on the supersaturation, the local lattice strain, the ease of dislocation slip, as well as twinning and diffusionless transformation triggering grain refinement. The intrinsic structure, the short-range order and the stability of the β-Ti phase have a strong influence on the mode of plastic deformation of the investigated Ti-alloys. [Copyright &y& Elsevier]
- Subjects :
- *ALLOYS
*MICROMETERS
*DEFORMATIONS (Mechanics)
*MATERIAL plasticity
Subjects
Details
- Language :
- English
- ISSN :
- 09215093
- Volume :
- 493
- Issue :
- 1/2
- Database :
- Academic Search Index
- Journal :
- Materials Science & Engineering: A
- Publication Type :
- Academic Journal
- Accession number :
- 34145706
- Full Text :
- https://doi.org/10.1016/j.msea.2007.08.094