Constitution of titanium rich alloys of Ti–V–Fe–Al system
Authors: Nwobu, A. I. P.; Flower, H. M.; West, D. R. F.
Source: Materials Science and Technology, Volume 7, Number 5, May 1991 , pp. 391-398(8)
Publisher: Maney Publishing
Abstract:An investigation has been made of the constitution of the titanium rich partial Ti–V–Fe–Al system in the composition range applicable to commercial α+ and Ti–V–Fe–Al alloys (e.g. Ti–10V–2Fe–3Al alloy) and at temperatures between 650 and 800°C. Partial Ti–V–Fe isothermal sections for alloys containing ~4 wt-%Al and V and Fe in a ratio ≥1:1 show only α and as the equilibrium phases for compositions up to 13 wt-%V and 4 wt-%Fe. The position of the α+/ boundary is temperature dependent and its shape is affected by the amount of aluminium present in the in equilibrium with a in the quaternary Ti–V–Fe–Al alloys. By contrast, the α/α+ boundary is independent of these parameters. Microstructural features relating to morphology and volume fractions of α and phases have been investigated and, together with the compositions of α and , are discussed in the context of alloy properties and processing.
Document Type: Research Article
Publication date: 1991-05-01
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