Metals 2013, 3(2), 188-201; doi:10.3390/met3020188
Article

Processing of Intermetallic Titanium Aluminide Wires

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Received: 7 April 2013; in revised form: 24 April 2013 / Accepted: 26 April 2013 / Published: 10 May 2013
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: This study shows the possibility of processing titanium aluminide wires by cold deformation and annealing. An accumulative swaging and bundling technique is used to co-deform Ti and Al. Subsequently, a two step heat treatment is applied to form the desired intermetallics, which strongly depends on the ratio of Ti and Al in the final composite and therefore on the geometry of the starting composite. In a first step, the whole amount of Al is transformed to TiAl3 by Al diffusion into Ti. This involves the formation of 12% porosity. In a second step, the complete microstructure is transformed into the equilibrium state of -TiAl and TiAl3. Using this approach, it is possible to obtain various kinds of gradient materials, since there is an intrinsic concentration gradient installed due to the swaging and bundling technique, but the processing of pure -TiAl wires is possible as well.
Keywords: Ti; Al; titanium aluminide; wire; phase reaction
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MDPI and ACS Style

Marr, T.; Freudenberger, J.; Kauffmann, A.; Romberg, J.; Okulov, I.; Petters, R.; Scharnweber, J.; Eschke, A.; Oertel, C.-G.; Kühn, U.; Eckert, J.; Skrotzki, W.; Schultz, L. Processing of Intermetallic Titanium Aluminide Wires. Metals 2013, 3, 188-201.

AMA Style

Marr T, Freudenberger J, Kauffmann A, Romberg J, Okulov I, Petters R, Scharnweber J, Eschke A, Oertel C-G, Kühn U, Eckert J, Skrotzki W, Schultz L. Processing of Intermetallic Titanium Aluminide Wires. Metals. 2013; 3(2):188-201.

Chicago/Turabian Style

Marr, Tom; Freudenberger, Jens; Kauffmann, Alexander; Romberg, Jan; Okulov, Ilya; Petters, Romy; Scharnweber, Juliane; Eschke, Andy; Oertel, Carl-Georg; Kühn, Uta; Eckert, Jürgen; Skrotzki, Werner; Schultz, Ludwig. 2013. "Processing of Intermetallic Titanium Aluminide Wires." Metals 3, no. 2: 188-201.

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