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Thermodynamic Study of the α → β Phase Transformation in Titanium by a Pulse Heating Method
1Institute for Materials Research, National Bureau of Standards, Washington, D. C. 20234.
Abstract:
Measurements of the temperature and energy of the α → β transformation, and the electrical resistivity near and at the transformation point of titanium by means of a subsecond duration pulse heating technique are described. The results yield 1166 K for the transformation temperature and 4170 J · mol-1 for the transformation energy. Electrical resistivity is found to decrease by about 9 percent during the α → β transformation. Estimated inaccuracies of the measured properties are: 7 K for the transformation temperature, 5 percent for the transformation energy, and 2 percent for the electrical resistivity.

