Microstructural characteristics and unique properties obtained by solution treating or aging in β-rich α+β titanium alloy

A β-rich α+β titanium alloy, SP-700 with Ti–4.5%Al–3%V–2%Mo–2%Fe exhibits unique properties in as-solution treated condition or upon subsequent aging. Stress-induced transformation and a high value of internal friction were caused by solution treating, and the age-hardening response in SP-700 was la...

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Bibliographic Details
Published in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 1999-05, Vol.263 (2), p.132-136
Main Authors: Ouchi, Chiaki, Fukai, Hideaki, Hasegawa, Kohei
Format: Article
Language:English
Subjects:
Age-hardening response
Applied sciences
Elasticity. Plasticity
Exact sciences and technology
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
Stress-induced transformation
α+β Titanium alloy
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Summary:A β-rich α+β titanium alloy, SP-700 with Ti–4.5%Al–3%V–2%Mo–2%Fe exhibits unique properties in as-solution treated condition or upon subsequent aging. Stress-induced transformation and a high value of internal friction were caused by solution treating, and the age-hardening response in SP-700 was largely accelerated compared with other heat treatable titanium alloys. The relationship between these properties and nano-scale microstructure obtained by this heat treatment is discussed.
ISSN:0921-5093
1873-4936
DOI:10.1016/S0921-5093(98)01171-X