Pressure Welding of bulk samples out nanostructured titanium alloy Ti-6Al-4V in the State of Low Temperature Superplasticity

M.K. Mukhametrakhimov show affiliations and emails
Received: 04 July 2012; Revised: 02 October 2012; Accepted: 15 October 2012
This paper is written in Russian
Citation: M.K. Mukhametrakhimov. Pressure Welding of bulk samples out nanostructured titanium alloy Ti-6Al-4V in the State of Low Temperature Superplasticity. Lett. Mater., 2012, 2(4) 249-252


The paper considers the possibility to decrease the temperature of pressure welding of nanostructured titanium alloy Ti-6Al-4V to the temperature 600оС to process sound welded joint. The aim is attained by using the effect of low temperature superplasticity in the alloy with a mean grain size no more than 0.3 μm under conditions when deformation processes play a leading role in formation of a solid state joint. The special shaping of the sample having a zone with a less cross section area provides steady localization of plastic flow directly in the zone of joining and promotes a flow of a material under condition most favorable in terms of deformation energy (load, force), thus it optimizes consumption of deformation energy. The results of FEM-code analysis of the stress-strain state of various shape samples are given.

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