The Paton Welding Journal, 2006, №05

2006 №05 (09)

2006 №05 (02)

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The Paton Welding Journal, 2006, #5, 2-7 pages

Weldability of shape-memory alloys of Ni-Ti system

B.E. Paton¹, D.M. Kaleko¹, V.P. Shevchenko¹, Yu.N. Koval², V.N. Slipchenko², L.M. Neganov², R.Ya. Musienko²

¹E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.
²G.V. Kurdyumov Institute of Metal Physics, NASU, Kiev, Ukraine

Abstract
Welding processes with pulsed heating are the most promising for joining small cross-section alloys of Ni-Ti system. We studied the characteristics of wire and foil joints produced by spot welding by a capacitor discharge and alternating current, shock capacitor-type welding and laser welding. Methods of optical and X-ray microcsopy, X-ray microprobe analysis, resistance measurement and three-point bending were used to show that the capacitor-type and laser welding processes do not change the material composition and its thermomechanical properties near the welding site, and may be recommended for application in manufacture of nithinol products.
Keywords: spot capacitor-type welding, shock capacitortype welding, laser welding, thermoelastic alloys, nithinol, mi¬crostructure, mechanical properties, thermomechanical properties

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Suggested Citation

B.E. Paton, D.M. Kaleko, V.P. Shevchenko, Yu.N. Koval, V.N. Slipchenko, L.M. Neganov, R.Ya. Musienko (2006) Weldability of shape-memory alloys of Ni-Ti system. The Paton Welding J., 05, 2-7.

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