Paper Titles
Retardation Effect of Grain Boundary Segregation on Grain Boundary Diffusion
p.167
Some Remarks on the Magnitude of the Chemical Diffusivities at Moving Grain Boundaries
p.173
Shape of Moving Grain Boundary and its Influence on Grain Boundary Motion in Zinc
p.183
Diffusion Parameters Determination by a Non-Destructive Technique with an Assumption of Mass Exchange on the Surface
p.189
Diffusion in the Interface Region of Ti/TiAl-Nb Bonding
p.193
On the Kinetic Mechanism of Ga Penetration in Al Bicrystals under Small Residual Stress
p.201
On the Grain Boundary Grooving in Thin Filaments
p.213
Surface Spreading and Penetration of Liquid and Solid Ga in Thin Polycrystalline Ag Films
p.219
Role of Diffusion as a Control Stage of a Grain Boundary Liquid Grooving
p.227

Diffusion in the Interface Region of Ti/TiAl-Nb Bonding

Article Preview

Abstract:

Diffusion in the interface regions of lightweight heatproof quality titanium and titanium/aluminum alloys was investigated. We studied the diffusion of aluminum from intermetallide to titanium alloy. The concentration of other chemical elements and microhardness has been measured in diffusion region formed in the solid titanium alloy. The interface region includes a transition zone from the initially solid Ti-alloy and the molten TiAl-Nb intermetallic substrate. The width of the interface region after diffusion bonding is 45-60 µm. The titanium content decreases and aluminum content increases starting from surface up to 120-150 µm in depth in solid titanium alloy. As a result of diffusion, the intermetallic Ti3Al thin layer was formed in the transition zone in the Ti-alloy substrate. The microporosity was also formed in the interface region.

You might also be interested in these eBooks
Diffusion in Solids - Past, Present and Future View Preview

Info:

Periodical:

Defect and Diffusion Forum (Volume 249)

Pages:

193-200

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.249.193

Citation:

Cite this paper

Online since:

January 2006

Authors:

Lembit A. Kommel

Keywords:

Aluminium Intermetallides, Diffusion Bonding (DB), Interface Region, Titanium Intermetallides

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2006 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] D. Kupp, D. Claar and K. Flemming: Advances in Powder Metallurgy & Particulate Materials, (Wiley, London 2002), pp.2-10 µm 10 µm 300 nm 1 µm.

Google Scholar

[2] L. Kommel, G. Teterin and R. Traksmaa: In EUROMAT-2001 (Rimini, Italy, 10-14 June 2001), p.339.

Google Scholar

[3] B.N. Kodess, G.P. Teterin, L.A. Kommel and V.K. Ovcharov: MRS Symp. Proc. Vol. 552 (1999), p. KK8. 37. 1.

Google Scholar

[4] V. Panin, Y. Burakov, A. Volkov, N. Chainov, L. Miagkov and D. Lukin: Materialovedenie (2005) in press.

Google Scholar

[5] R. Bohn, T. Klassen and R. Bormann: Acta Mater. Vol. 49 (2001), p.299.

Google Scholar

[6] R.M. Imaev, N.K. Gabdullin, G.A. Salishchev, O.N. Senkov, V.M. Imaev and F.H. Froes: Acta Mater. Vol. 47 (1999), p.1809.

Google Scholar

[7] V.I. Emel'yanov and D.V. Babak: Applied Physics A, Mater. Sci. Processing (2002) / Digital Object Identifier (DOI) 10. 1007/s003390100980.

Google Scholar

[8] H.N. Lee, D.R. Johnson, H. Inui, M.H. Oh, D.M. Wee and M. Yamaguchi: Acta mater. Vol. 48 (2000), p.3221.

Google Scholar

[9] Y. Koizumi, T. Nakano and Y. Umakoshi: Acta Mater. Vol. 47 (1999), p. (2019).

Google Scholar

[10] G. Pavlov and L. Kommel: USSR Patent N1448490, (1986).

Google Scholar

[11] M. Holmquist, V. Recina and B. Pettersson: Acta Mater. Vol. 47 (1999), p.1791.

Google Scholar

[12] G.P. Teterin and A.E. Volkov: Forg. Stamp. Prod. Vol. 7 (1994), p.2.

Google Scholar

[13] S.J. Lee, S.K. Wu and R.Y. Lin: Acta Mater. Vol. 46 (1998), p.1283.

Google Scholar

[14] B.N. Kodess, L.A. Kommel, G.P. Teterin and V.K. Ovcharov: in Investigations and Applications of Severe Plastic Deformation, Eds. T.C. Lowe and R.Z. Valiev (Kluwer Academic Publishers, Amsterdam 2000), p.211.

DOI: 10.1007/978-94-011-4062-1_28

Google Scholar

[15] Ren Jiangwei, Li Yajiang and Feng Tao: Mater. Lett. Vol. 56 (2000), p.647 Prof. A. Pokoev, Dr. L. Kommel Prof. L. Klinger, Dr. E. Khandogina, Dr. A. Petelin.

Google Scholar