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2009 №10 (04) 2009 №10 (06)

The Paton Welding Journal 2009 #10
TPWJ, 2009, #10, 23-27 pages  
INVESTIGATION OF PHASE TRANSFORMATIONS AND PLASTIC DEFORMATION AT CONTINUOUS HEATING OF Al/Cu MULTILAYER FOIL


Journal                    The Paton Welding Journal
Publisher                 International Association «Welding»
ISSN                       0957-798X (print)
Issue                       № 10, 2009 (October)
Pages                      23-27
 
 
Authors
A.I. USTINOV1, Ya.I. MATVIENKO1, S.S. POLISHCHUK2 and A.E. SHISHKIN2

1E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
2G.V. Kurdyumov Institute for Metal Physics, NASU, Kiev, Ukraine
 
 
Abstract
Pressure welding through an interlayer with a multilayer structure based on intermetallic-forming elements allows solid-state formation of permanent joints in hard-to-weld materials. The role of interlayer structure in formation of permanent joints has been evaluated by an example of Al/Cu multilayer foil. It is shown that such foils subjected to continuous heating to 500 °C, under the conditions of permanent loads are characterized, in addition to phase transformations caused by the reaction diffusion of components, also by plastic deformation, the intensity of which depends upon the foil temperature.
 
 
Keywords: diffusion pressure welding, electron beam deposition, multilayer foil, phase transformation, plastic deformation
 
 
Received:                06.04.09
Published:               28.10.09
 
 
References
1. Cao, J., Feng, J.C., Li, Z.R. (2008) Microstructure and fracture properties of reaction-assisted diffusion bonding of TiAl intermetallic with Al/Ni multilayer foils. J. Alloys and Compounds, 466, 363-367.
2. Ustinov, A.I., Falchenko, Yu.V., Ishchenko, A.Ya. (2008) Diffusion welding of g-TiAl based alloys through nano-layered foil of Ti/Al system. Intermetallics, 16, 1043-1045.
3. Ramos, A.S., Vieira, M.T., Duarte, L.I. et al. (2006) Nanometric multilayers: A new approach for joining TiAl. Ibid., 14, 1157-1162.
4. Pascal, C., Marin-Ayral, R.M., Te'denac, J.C. (2002) Joining of nickel monoaluminide to a superalloy substrate by high pressure self-propagating high-temperature synthesis. J. Alloys and Compounds, 337, 221-225.
5. Ustinov, A., Olikhovska, L., Melnichenko, T. et al. (2008) Effect of overall composition on thermally induced solidstate transformations in thick EB PVD Al/Ni multilayers. Surf. Coat. Techn., 202, 3832-3838.
6. Ustinov, A., Olikhovskaya, L., Melnichenko, T. et al. (2008) Solid-phase reactions in heating of multilayer Al/Ti foils produced by electron beam deposition method. Advances in Electrometallurgy, 2, 19-26.
7. Gershinski, A.E., Fomin, B.I., Cherepov, E.I. et al. (1977) Investigation of diffusion in the Cu-Al thin film system. Thin Solid Films, 42, 269-275.
8. Hentzell, H.T.G., Thomson, R.D., Tu, K.N. (1983) Interdiffusion in copper-aluminium film bilayers. Pt 1: Structure and kinetics of sequential compound formation. J. Appl. Phys., 54, 6923-6928.
9. Hentzell, H.T.G., Thomson, R.D., Tu, K.N. (1983) Interdiffusion in copper-aluminium film bilayers. Pt 2: Analysis of marker motion during sequential compound formation. Ibid., 6923-6928.
10. Ay, I., Celik, S., Celik, I. (1999) Comparison of properties of friction and diffusion welded joints made between the pure aluminium and copper bars. BAU fen Bilimleri Enstitusu Dergisi, 1, 88-102.
11. Lee, W.-B., Bang, K.-S., Jung, S.-B. (2005) Effects of intermetallic compound on the electrical and mechanical properties of friction welded Cu/Al bimetallic joints during annealing. J. Alloys and Compounds, 390, 212-219.
12. Ouyang, J., Yarrapareddy, E., Kovacevic, R. (2006) Microstructural evolution in the friction stir welded 6061 aluminum alloy (T6-temper condition) to copper. J. Materials Proc. Techn., 172, 110-122.
13. Abdollah-Zadeh, A., Saeid, T., Sazgari, B. (2008) Microstructural and mechanical properties of friction stir welded aluminum/copper lap joints. J. Alloys and Compounds, 460, 535-538.
14. Massalski, T.B., Okamoto, H., Subramanian, P.R. et al. (1986) Binary alloy phase diagrams. Ohio: ASM Int., Materials Park.
15. Ishchenko, A.Ya., Falchenko, Yu.V., Ustinov, A.I. et al. (2007) Diffusion welding of finely-dispersed AMg5/27 % Al2O3 composite with application of nanolayered Ni/Al foil. The Paton Welding J., 7, 2-5.
16. Rajan, K., Wallach, E.R. (1980) A transmission electron microscopy study of intermetallic formation in aluminiumcopper thin film couples. J. Cryst. Growth, 49, 297-302.
17. Abbasi, M., Karimi Taherib, A., Salehia, M.T. (2001) Growth rate of intermetallic compounds in Al/Cu bimetal produced by cold roll welding process. J. Alloys and Compounds, 319, 233-241.
18. Heness, G., Wuhrer, R., Yeung, W.Y. (2007) Interfacial strength development of roll-bonded aluminium/copper metal laminates. Mater. Sci. and Eng. A, 483/484, 740-743.
19. Tikhonov, A.S. (1978) Effect of superplasticity of metallic materials and alloys. Moscow: Nauka.
20. Pshenichnyuk, A.I., Kajbyshev, O.A., Astanin, V.V. (1998) Model of superplasticity based on notion of cooperative grain-boundary sliding. Math. Modelirovanie System I Protsessov, 6, 99-109.