Influence of Heating Temperature and Cooling Conditions on Structure and Properties of Two-Phase Titanium Alloy

Abstract:

The effects of heating temperature in the range 790-990 ° C and subsequent cooling in the water, in air, with the furnace on the formation of the structure, phase composition of the titanium alloy VST2 were studied. There was the metastable β-solid solution and α - phase during the quenching heating temperature to 865 °C. The phase composition in the temperature range of 865-915 °C was α + β + α''. There was only α'' - martensite in the structure at the temperatures above 940 °C. Reducing the rate of cooling (air, furnace) helped the retention of two-phase α + β - state after all the heating temperatures. The temperature - rate parameters of heat treatment which can obtain good strength and ductility properties are suggested.

• Periodical: Solid State Phenomena (Volume 265)
• Pages: 646-651
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.265.646
• Online since: September 2017
• Authors: Fedor V. Vodolazskiy*, A.V. Zhloba, A.A. Popov
• Keywords: Cooling in Air, Heat Treatment, Lattice Parameters, Mechanical Properties, Quenching, Structure, Titanium Alloy, With the Furnace

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