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

M.K. Mukhametrakhimov1
1ИПСМ РАН, г. Уфа, ул. Ст. Халтурина -39
Abstract
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.
Received: 04 July 2012   Revised: 02 October 2012   Accepted: 15 October 2012
Views: 50   Downloads: 6
References
1.
O.A. Kaibyshev, R.Ya. Lutfullin, V.K. Berdin. DokladyAkademii Nauk SSSR. 319, 615 (1991). (in Russian).
2.
O.A. Kaibyshev, R.Ya. Lutfullin, V.K. Berdin. Phys. Met.Metall. 75, 96 (1993).
3.
Comley P.N. Lowering the Heat-The Development ofReduced SPF Temperature Titanium Alloys for AircraftProduction. Materials Science Forum Vols. 447-448,Trans Tech Publications, 2004, pp. 233-238.
4.
Salishchev, G. A., Galeev, R. M.,. Valiakhmetov, O. R., etal., 2000. Highly Superplastic Ti-6Al-4V Sheet. MaterialsTechnology and Advanced Performance Materials, 15(2),pp. 133-135.
5.
Kaibyshev O.A., Lutfullin R.Ya., Safiullin R.V., FatkullinS.N. Materials Science Forum 170 - 172, 737(1994).
6.
Kaibyshev O.A., Lutfullin R.Ya. and Safiullin R.V. Proc.of Confer. Current Advances in Mechanical Design andRroduction, Sixth Cairo University International MDPConference. 73 (1996).
7.
R.Ya. Lutfullin, O.A. Kaibyshev, O.R. Valiakhmetov, M.Kh.Mukhametrakhimov, R.V. Safiullin, R.R. Mulyukov, J. оfAdvanced Materials, 4 (2003) 326.
8.
M.Kh. Mukhametrakhimov, R.Ya. Lutfullin. Effect of vacuumannealing on the structure and mechanical propertiesof the NC alloy VT6., Deformation and Fracture ofMaterials 10, 38 (2008) (in Russian).
9.
Lutfullin R.Ya., Kaibyshev O.A., Safiullin R.V., ValiakhmetovO.R. and Mukhametrahimov M.H. Superplasticity andSolid State Bonding of Titanium Alloys. Acta MetallurgicaSinica (English Letters). 13 (2), 561(2000).
10.
M.Kh. Mukhametrakhimov, R.Ya. Lutfullin. In: CurrentStatus of Theory and Practice of Superplasticity inMaterials. Ufa, Gilem 118 (2000) (in Russian).
11.
A.A. Presnyakov. localization of plastic deformation.(Mechanical engineering, Moscow, 1983),p. 56 (inRussian).
12.
A.K. Galimov, M.Kh. Mukhametrakhimov, R.Ya. Lutfullin,Proceedings of the 7-th International Workshop onComputer Science and Information Technologies. 3, 328(2005).
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