Features of Martensitic Transformation in the Area of Welding of Medical Ti49.2Ni50.6Ag0.2 Alloy
Yu. M. Koval1, R. Ya. Musienko1, V. M. Slipchenko1, T. G. Sych1, S. M. Kedrovsky1, D. M. Kaleko2
1G. V. Kurdyumov Institute for Metal Physics, NAS of Ukraine, 36 Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine
2E. O. Paton Electric Welding Institute, NAS of Ukraine, 11 Kazymyr Malevych Str., UA-03150 Kyiv, Ukraine
Received: 15.06.2015. Download: PDF
The features of welding of functional materials such as medical Ti49.2Ni50.6Ag0.2 alloy are investigated. Thermal influence of welding by the AC method and current of capacitors’ discharge on alloy structure, martensitic transformation parameters, and shape-memory effect are considered. As noted, the welding seam is tougher after current of capacitors’ discharge because of formation of a molten core. Change in parameters of martensitic transformation in the welding seam is observed. To maintain the functional properties, appropriate heat treatment of welded samples is proposed.
Key words: TiNi-based alloys, martensitic transformations, shape-memory effect, welding.
URL: http://mfint.imp.kiev.ua/en/abstract/v37/i10/1339.html
DOI: https://doi.org/10.15407/mfint.37.10.1339
PACS: 06.60.Vz, 62.20.fg, 62.20.fq, 81.05.Bx, 81.20.Vj, 81.30.Kf, 81.70.Pg
Citation: Yu. M. Koval, R. Ya. Musienko, V. M. Slipchenko, T. G. Sych, S. M. Kedrovsky, and D. M. Kaleko, Features of Martensitic Transformation in the Area of Welding of Medical Ti49.2Ni50.6Ag0.2 Alloy, Metallofiz. Noveishie Tekhnol., 37, No. 10: 1339—1348 (2015) (in Ukrainian)