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The Ageing Behavior of Titanium Alloy Ti-10V-2Fe-3Al
- Source :
- Materials Science Forum. :843-846
- Publication Year :
- 2010
- Publisher :
- Trans Tech Publications, Ltd., 2010.
-
Abstract
- A good combination of high strength and hardenability makes the alloy Ti 10V-2Fe-3Al a prime candidate for applications in the aerospace arena. However, these properties are very dependent on a post-forming heat treatment. The overall objective of this work is to determine the effect of prior deformation on the aging behaviour. In this particular study, the influence of the heat treatment, either solution and/or aging, on the microstructures, and consequently on the mechanical properties, without introduced strain is reported. Various solution heat treatments have been conducted, either in the β phase or in the (α+β) phase field, followed by rapid quenching or slow cooling, and aging treatments at different temperatures (250, 350, 400, 500C°) above and below the ω-transus temperature. Vickers hardness indentations were used to follow the precipitation hardening behaviour, and mechanical properties were determined using a shear punch test. The aging response is dependent not only on the presence of the athermal ω phase but also on the proximity of the aging temperature to the ω-transus. Most treatments showed an unusual initial softening behaviour prior to age hardening, however this appears to be related again to the composition and fraction of the β phase retained after solution treatment.
- Subjects :
- Quenching
Materials science
Mechanical Engineering
Metallurgy
Alloy
Titanium alloy
engineering.material
Condensed Matter Physics
Precipitation hardening
Mechanics of Materials
Phase (matter)
Vickers hardness test
engineering
General Materials Science
Composite material
Deformation (engineering)
Hardenability
Subjects
Details
- ISSN :
- 16629752
- Database :
- OpenAIRE
- Journal :
- Materials Science Forum
- Accession number :
- edsair.doi...........40f39c13d5a934d9adee5af6aae420a1