TPWJ, 2010, #5, 19-23 pages
STRUCTURAL STATE OF RAPIDLY QUENCHED Cu-Ti SYSTEM BRAZING FILLER METAL
Journal The Paton Welding Journal
Publisher International Association «Welding»
ISSN 0957-798X (print)
Issue № 5, 2010 (May)
Pages 19-23
Authors
S.V. MAKSYMOVA1, V.F. KHORUNOV1 and G.M. ZELINSKAYA2
1E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
2G.V. Kurdyumov Institute for Metal Physics, NASU, Kiev, Ukraine
Abstract
It has been established that the strip of a rapidly quenched brazing filler metal is in the amorphous state with a uniform distribution of alloying elements in its width. Temperature ranges of transition of the brazing alloy from the amorphous to crystalline state have been determined. X-ray examination of phase composition of the rapidly quenched strip in the initial state and after isothermal annealing has been conducted, the δ-CuTi and γ-CuTi
2 crystalline structures being identified in the latter case.
Keywords: brazing, brazing filler metal, Ti-Cu system, structure, phase composition, amorphous and crystalline state, super rapid quenching, isothermal annealing, X-ray diffraction analysis
Received: 13.01.10
Published: 28.05.10
References
1. Kovneristy, Yu.K. (1999) Volume-amorphising metal alloys. Moscow: Nauka.
2. Khorunov, V.F., Maksymova, S.V. (2005) Amorphous filler alloys Д promising material for advanced brazing processes (Review). The Paton Welding J., 10, 33-38.
3. Fatkhullin, O.Kh. (2005) State-of-the-art in metal science of rapidly quenched heat-resistant alloys. Tekhnologiya Lyog. Splavov, 1-4, 24-31.
4. Kalin, B.A., Fedotov, V.T., Sevryukov, O.N. et al. (1996) Amorphous brazing filler metal strips. Experience of development of the manufacturing technology and application. Svarochn. Proizvodstvo, 1, 15-19.
5. Kalin, B.A., Plyushchev, A.N., Fedotov, V.T. et al. (2001) Effect of structural state of brazing filler metal on physicalmechanical properties of brazed joints. Ibid., 8, 38-41.
6. Shpak, A.P., Kunitsky, Yu.A., Lysov, V.I. (2002) Cluster and nanostructural materials. Kiev: Akademperiodika.
7. Nemoshkalenko, V.V., Romanova, A.V., Iliinsky, F.G. (1987) Amorphous metal alloys. Kiev: Naukova Dumka.
8. Romanova, A.V. (1995) Some historical facts and memories about development of notions of atomic structure of liquid and metal glasses. Metallofizika, Novejshie Tekhnologii, 8, 3-29.
9. Golder, Yu.G. (1978) Metal glasses. Tekhnologiya Lyog. Splavov, 6, 74-93.
10. Maksimova, S.V., Khorunov, V.F., Shonin, V. A. et al. (2002) Vacuum brazing of dispersion-strengthened copper alloy Glidcop Al-25. The Paton Welding J., 10, 13-17.