Age hardening of VT35 titanium alloy

Antipov, A. I.; Moiseev, V. N.; Moder, N. I.

doi:10.1007/bf01154082

Cited by 4 publications

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“…As it is known [27,28], the nucleation of the α-phase during aging begins primarily along the grain boundaries and on deformation defects. It should be noted that the above results are qualitatively similar to the results obtained in [29] for the investigated VT35 alloy.…”

Section: Resultssupporting

confidence: 89%

The effect of preliminary treatment with subsequent aging on structural-phase state and mechanical properties of β titanium alloy

et al. 2022

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The effect of aging at 723 K on the structural-phase state and mechanical properties of VT35 titanium alloy after β quenching and various treatments using severe plastic deformation has been studied. It is shown that annealing at 1073 K followed by quenching and aging leading to the precipitation of large α-phase lamellae with volume fraction of 20 % doesn't have a strengthening effect on the alloy. After processing by radial shear rolling and subsequent aging fine α-phase precipitations in the form of plates and nanometer-sized particles with a volume fraction of 24 % are observed in β-phase grains. However, large areas of β-phase without α-phase precipitates are observed. The strength properties of the alloy after the treatment increase by 40 -45 %. The processing by the method of multiple pressing leads to the formation of a mixed α / β UFG structure with a grain / subgrain size of 0.11 µm. Subsequent aging leads to the decomposition of the residual β-phase and to a homogeneous distribution of α and β phases in the alloy with volume fraction of α-phase 51 %. The formation of such an UFG structuralphase state leads to an increase in the strength properties of the alloy by a factor of almost two compared to the initial state.

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Section: Resultssupporting

confidence: 89%