Development of an Experimental Technique and Evaluate Limit of Plastic Deformation of Titanium Alloy OT4-0 under Superplastic Conditions

Abstract:

The method and unit for experimental research of membrane formation from titanium alloys under conditions of superplastic is developed, which allows to determine necessary parameters of deformation. The unit is designed to deform titanium sheets in isothermal conditions by applying a uniform distributed load. When membrane is formed by a gas medium, a biaxial tension is realized. This type of test is used to assess the plastic properties of metals. In this work, the limiting deformations of the sheet titanium alloy OT4-0 have been evaluated in the formation of the membrane. Installed during the process of superplastic deformation the connection between the external parameters of deformation (force, temperature) with the depth of formation of the membrane in time and strain distribution along its generatrix.

• Periodical: Solid State Phenomena (Volume 291)
• Pages: 183-192
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.291.183
• Online since: May 2019
• Authors: Vyacheslav Titov*, Tetiana Garanenko
• Keywords: Biaxial Tension, Membrane, Pressure, Superplastic, Temperature

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