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The Effect of Temperature on the Microstructure of a Metastable β Ti Alloy
Journal article   Peer reviewed

The Effect of Temperature on the Microstructure of a Metastable β Ti Alloy

Gui Wang, Weiqi Wang, Yulan Yang, Damon Kent and Matthew S Dargusch
Materials Science Forum, Vol.654-656, pp.847-850
2010
DOI: https://doi.org/10.4028/www.scientific.net/MSF.654-656.847
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https://doi.org/10.4028/www.scientific.net/MSF.654-656.847View
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Abstract

Materials Engineering Physical Chemistry (incl. Structural) metastable β titanium alloy microstructure precipitation
A metastable β titanium alloy, BTi-6554 (Ti-6Cr-5Mo-5V-4Al) has been developed for structural applications in aircraft because of its high strength, high toughness, and good fatigue properties. This paper reports on the effect of heat treatment on microstructure and microhardness of the alloy. It has been shown that in the as hot rolled condition, the alloy consists of a single β phase. Heat treatment between 450-750°C results in the precipitation of α laths, while exposure to temperatures between 700-800°C results in the gradual transformation of the α phase back to β phase with larger grain sizes resulting from higher heat treatment temperatures.

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Materials Science, Ceramics
Materials Science, Coatings & Films
Materials Science, Composites
Materials Science, Multidisciplinary
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