Structure and Properties of Welded Joints of Titanium Substrates with Ti-Ta Corrosion Resistant Coatings

Abstract:

The possibility of joining titanium substrates with Ti-Ta corrosion-resistant coatings was investigated. Joints were obtained by manual tungsten inert gas welding. Microstructure investigations revealed the inhomogeneous distribution of alloying elements and a martensitic microstructure in joints. Microhardness values in Ti-Ta coatings and welded seams were approximately equal and varied from 380 to 420 HV. The value of titanium substrate microhardness was about 180 HV. An ultimate strength of welded joints was equal to 580 MPa while the strength of the starting material was 365MPa.

• Periodical: Applied Mechanics and Materials (Volume 698)
• Pages: 316-320
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.698.316
• Online since: December 2014
• Authors: P.N. Komarov, A.A. Ruktuev*, M.G. Golkovski
• Keywords: Electron Beam Cladding, Mechanical Property, Tantalum, Titanium, Welding

References

[1] K. Kapoor, K. Vivekanand, T. Gopalkrishna, T. Saneal, P.K. De, High corrosion resistant Ti – 5% Ta – 1. 8 % Nb alloy for fuel reprocessing application, J. Nuclear Materials 322 (2003) 36-44.

DOI: 10.1016/s0022-3115(03)00302-7

[2] D. Mareci, R. Chelariu, D.M. Gordin, G. Ungureanu, T. Gloriant, Comparative corrosion study of Ti–Ta alloys for dental applications, Acta Biomater, 5 (2009) 3625–3639.

DOI: 10.1016/j.actbio.2009.05.037

[3] A. Hoon, L. Dohjae, L. Kwang-Min, L. Kyungku, B. Daehwa, P. Sang-Won, Oxidation behavior and corrosion resistance of Ti–10Ta–10Nb alloy, Surf. Coat. Technol. 202 (2008) 5784–5789.

DOI: 10.1016/j.surfcoat.2008.06.074

[4] K.A. de Souza, A. Robin, Influence of concentration and temperature on the corrosion behavior of titanium, titanium-20 and 40% tantalum alloys and tantalum in sulfuric acid solutions, Mater. Chem. and Phys. 103 (2007) 351–360.

DOI: 10.1016/j.matchemphys.2007.02.026

[5] Y.L. Zhou, M. Niinomi, Ti–25Ta alloy with the best mechanical compatibility in Ti–Ta alloys for biomedical applications, Mater. Sci. Eng. C 29 (2009) 1061–1065.

DOI: 10.1016/j.msec.2008.09.012

[6] M.G. Golkovski, I.A. Bataev, A. A Bataev., A.A. Ruktuev, T.V. Zhuravina, N.K. Kuksanov, R.A. Salimov, V.A. Bataev, Atmospheric electron-beam surface alloying of titanium with tantalum, Mater. Sci. Eng. A. 578 (2013) 310-317.

DOI: 10.1016/j.msea.2013.04.103

[7] M.G. Golkovsky, T.V. Zhuravina, I.A. Bataev, A.A. Bataev, S.V. Veselov, V.A. Bataev, E.A. Prikhodko, Cladding of Tantalum and Niobium on Titanium by an Electron Beam Injected in the Atmosphere, Adv. Mater. Res 314-316 (2011) 23-27.

DOI: 10.4028/www.scientific.net/amr.314-316.23

[8] M.G. Golkovski, V.V. Samoylenko. A.I. Popeliukh, A.A. Ruktuev, N.V. Plotnikova, N.S. Belousova, Multilayered electron-beam overlay welding of the tantalum-containing powder mixtures on the commercial pure titanium, Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) 61 (2013).