ANALYTICAL MODELING OF THE MICROSTRUCTURE EVOLUTION OF TITANIUM ALLOYS DURING HIGH-SPEED STAMPING OF THE BLADES OF GAS-TURBINE ENGINES
https://doi.org/10.17073/0021-3438-2015-1-49-56
Abstract
The analysis procedure of the microstructure evolution during intense deforming is developed and approved by an example of high-speed stamping (HSS) of GTE blades made of VT9 titanium alloy based on the analytical model of dynamic recrystallization. Model coefficients were calculated by the results of the measurement of grain sizes during the preliminary experiments on high-speed upsetting of cylindrical samples made of VT9 alloy. The microstructure was investigated experimentally after HSS of the blades made of VT9 alloy using a VSM4 hammer with the motion velocity of falling parts in deformation beginning of 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 up to 10 %.
About the Authors
V. A. Kostyshev
Самарский государственный аэрокосмический университет (СГАУ)
им. акад. С.П. Королева (национальный исследовательский университет)
Russian Federation
Russian Federation
A. I. Khaimovich
Самарский государственный аэрокосмический университет (СГАУ)
им. акад. С.П. Королева (национальный исследовательский университет)
Russian Federation
Russian Federation
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Review
For citations:
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. Izvestiya. Non-Ferrous Metallurgy. 2015;(1):49-56. (In Russ.) https://doi.org/10.17073/0021-3438-2015-1-49-56
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