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Analytical modeling of the microstructure evolution of titanium alloys during high-speed stamping of the blades of gas-turbine engines

  • Pressure Treatment of Metals
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Abstract

The analysis procedure of the microstructure evolution during intense deformation is developed and approved by the example of high-speed stamping (HSS) of GTE blades made of VT9 titanium alloy based on an analytical model of dynamic recrystallization. Model coefficients were calculated by the results of a measurement of grain sizes during preliminary experiments on the high-speed upsetting of cylindrical samples made of VT9 alloy. The microstructure was investigated experimentally after the HSS of blades made of VT9 alloy using a VSM4 hammer with the motion velocity of falling parts in the beginning of deformation at 30 m/s. The microstructure evolution of the deformed medium is modeled analytically (by the sizes of the α phase), allowing for the variation in texture along main deformation directions with an error reaching 10%.

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Authors and Affiliations

  1. Samara State Aerospace University (National Research University), Moskovskoe sh. 34, Samara, 443086, Russia

    V. A. Kostyshev & A. I. Khaimovich

Authors
  1. V. A. Kostyshev
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  2. A. I. Khaimovich
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Corresponding author

Correspondence to V. A. Kostyshev.

Additional information

Original Russian Text © V.A. Kostyshev, A.I. Khaimovich, 2015, published in Izvestiya VUZ. Tsvetnaya Metallurgiya, 2015, No. 1, pp. 49–56.

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Kostyshev, V.A., Khaimovich, A.I. Analytical modeling of the microstructure evolution of titanium alloys during high-speed stamping of the blades of gas-turbine engines. Russ. J. Non-ferrous Metals 56, 181–189 (2015). https://doi.org/10.3103/S1067821215020121

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  • DOI: https://doi.org/10.3103/S1067821215020121

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