| Autor: |
Cai, S., Schaffer, J. E., Ren, Y. |
| Předmět: |
|
| Zdroj: |
Applied Physics Letters; 3/30/2015, Vol. 106 Issue 13, p1-5, 5p, 1 Chart, 5 Graphs |
| Abstrakt: |
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)α" fiber texture was formed at the expense of the (001)α" and (111)α" fiber textures. Above 400MPa applied stress, (110)α" deformation twinning was triggered with a simultaneous stress relaxation in the (110)α" family and a slight increase in its texture strength in the loading direction. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
