Formation of Ultrafine‐Grained Microstructure of Ti–6Al–4V Alloy by Hot Deformation of α′ Martensite Starting Microstructure | Zendy

Matsumoto Hiroaki | Zendy; Lee SangHak | Zendy; Ono Yoshiki | Zendy; Li Yunping | Zendy; Chiba Akihiko | Zendy

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Formation of Ultrafine‐Grained Microstructure of Ti–6Al–4V Alloy by Hot Deformation of α′ Martensite Starting Microstructure

Author(s) -

Matsumoto Hiroaki,

Lee SangHak,

Ono Yoshiki,

Li Yunping,

Chiba Akihiko

Publication year - 2011

Publication title -

advanced engineering materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.938

H-Index - 114

eISSN - 1527-2648

pISSN - 1438-1656

DOI - 10.1002/adem.201000317

Subject(s) - microstructure , materials science , acicular , martensite , metallurgy , alloy , deformation (meteorology) , composite material

We have presented a formation of ultrafine‐grained microstructure (d α ≈ 0.2 µm) of industrial Ti–6Al–4V alloy produced by the hot compression of a sample with the acicular α′ martensite starting microstructure. The hot‐deformation behavior was different from the case of the conventional (α + β) starting microstructure, that is, the phase transformation of α′/(α + β) during hot working enhanced the microstructural conversion, especially under the conditions of a low temperature and a high‐strain rate.

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