Details

Autor(en) / Beteiligte

• Xiao, J.F.
• Nie, Z.H.
• Tan, C.W.
• Zhou, G.
• Chen, R.
• Li, M.R.
• Yu, X.D.
• Zhao, X.C.
• Hui, S.X.
• Ye, W.J.
• Lee, Y.T.

Titel

Effect of reverse β-to-ω transformation on twinning and martensitic transformation in a metastable β titanium alloy

Ist Teil von

• Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2019-06, Vol.759, p.680-687

Ort / Verlag

Lausanne: Elsevier B.V

Erscheinungsjahr

2019

Quelle

Elsevier ScienceDirect Journals

Beschreibungen/Notizen

• A metastable β titanium alloy, Ti–2Al-9.2Mo–2Fe (wt.%), with athermal ω phase after quenching has been subjected to high strain rate (∼3000 s−1) compression at ambient temperature by Spilt Hopkinson Pressure Bar arrangement. Reverse β-to-ω transformation was investigated by transmission electron microscopy during deformation. Furthermore, the novel distribution of athermal ω phase in {332} twinning and stress-induced martensitic was observed. We reveal that such novel distribution is attributed to the influence of ω phase on {332} twinning and stress-induced martensite transformation (SIMT) based on the viewpoint of the instability of the lattice structure of metastable β phase. Furthermore, a new process of twinning and SIMT in current alloy with ω phase was proposed.