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Thermal expansion of liquid Ti–6Al–4V measured by electrostatic levitation

Li, John J. Z. and Johnson, William L. and Rhim, Won-Kyu (2006) Thermal expansion of liquid Ti–6Al–4V measured by electrostatic levitation. Applied Physics Letters, 89 (11). Art. No. 111913. ISSN 0003-6951.

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The liquid density of Ti–6Al–4V was measured over a temperature range from 1661 to 1997 K that included undercooling by as much as 280 K. The sample was levitated in an electrostatic levitator and video imaging technique was used to capture the volume changes as a function of temperature. Over the temperature range the liquid density can be expressed by rholiq(T)=4123–0.254 (T–Tm) kg/m^3, where the melting temperature Tm is 1943 K. The corresponding volume expansion coefficient is alphaliq=6.05×10^–5 K^–1 near Tm.

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Additional Information:©2006 American Institute of Physics (Received 23 May 2006; accepted 19 July 2006; published online 14 September 2006) The authors would like to thank S. K. Chung and D. Barber at Jet Propulsion Laboratory for their help at the earlier stage of this work. This work was carried out at California Institute of Technology, under contract with the NASA Marshall Space Flight Center (NNM04AA21G).
Subject Keywords:titanium alloys; aluminium alloys; vanadium alloys; thermal expansion; liquid alloys; density; undercooling; melting point
Issue or Number:11
Record Number:CaltechAUTHORS:LIJapl06
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5244
Deposited By: Archive Administrator
Deposited On:06 Oct 2006
Last Modified:02 Oct 2019 23:20

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