The Effect of β Stabilizers on the Structure and Energy of α/β Interfaces in Titanium Alloys.
Autor: | Murzinova, M. A., Zherebtsov, S. V., Klimenko, D. N., Semiatin, S. L. |
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Zdroj: | Metallurgical & Materials Transactions. Part A; May2021, Vol. 52 Issue 5, p1689-1698, 10p |
Abstrakt: | The structure and energy associated with interfaces between the BCC and HCP lattices (β and α phase, respectively) in titanium alloys with commonly used β stabilizers were analyzed. For this purpose, the crystallographic structure of the matching facets of broad, side and end faces was described using misfit dislocations and structural ledges which compensate the mismatch in atomic spacing of the α and β phases. The effect of the β/α transformation temperature due to various concentration of β stabilizers on periodicity of misfit dislocations and structural ledges was estimated. The van der Merwe approach was used to calculate energy of different matching facets. An increase in the percentage of β-stabilizing elements was found to result in a decrease in the lattice-parameter ratio (a |
Databáze: | Complementary Index |
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