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HomeMaterials Science ForumMaterials Science Forum Vol. 879Advanced Intermetallic TiAl Alloys

Advanced Intermetallic TiAl Alloys

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Abstract:

Challenging issues concerning energy efficiency and environmental politics require novel approaches to materials design. A recent example with regard to structural materials is the emergence of lightweight intermetallic TiAl alloys. Their excellent high-temperature mechanical properties, low density, and high stiffness constitute a profile perfectly suitable for their application as advanced aero-engine turbine blades or as turbocharger turbine wheels in next-generation automotive engines. Advanced so-called 3^rd generation TiAl alloys, such as the TNM alloy described in this paper, are complex multi-phase alloys which can be processed by ingot or powder metallurgy as well as precision casting methods. Each process leads to specific microstructures which can be altered and optimized by thermo-mechanical processing and/or subsequent heat treatments.

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THERMEC 2016

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Periodical:

Materials Science Forum (Volume 879)

Pages:

113-118

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.879.113

Citation:

Cite this paper

Online since:

November 2016

Authors:

Helmut Clemens*, Svea Mayer

Keywords:

Alloy Development, Applications, Intermetallics, Processing, Properties, Titanium Aluminides

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* - Corresponding Author

[1] Y-W. Kim, D. Morris, R. Yang, and C. Leyens (Eds. ), Structural Aluminides for Elevated Temperature Applications, The Minerals, Metals and Materials Society (TMS), Warrendale, PA, USA, (2008).

[2] H. Clemens, S. Mayer, Development Status, Applications and perspectives of advanced intermetallic titanium aluminides, Materials Science Forum Vols. 783-786 (2014) 15-20.

DOI: 10.4028/www.scientific.net/msf.783-786.15

[3] F. Appel, J. D. H. Paul, M. Oehring, Gamma Titanium Aluminide Alloys - Science and Technology, WILEY- VCH, Weinheim, (2011).

DOI: 10.1002/9783527636204

[4] H. Clemens, S. Mayer, Design, processing, microstructure, properties, and applications of advanced intermetallic TiAl alloys, Adv. Eng. Mat., 15 (2013) 191-215.

DOI: 10.1002/adem.201200231

[5] H. Clemens, W. Wallgram, S. Kremmer, V. Güther, A. Otto, and A. Bartels, Design of novel β-solidifying TiAl alloys with adjustable β/B2-phase fraction and excellent hot-workability, Adv. Eng. Mat. 10 (2008) 707-713.

DOI: 10.1002/adem.200800164

[6] W. Wallgram, T. Schmoelzer, G. Das, V. Güther, and H. Clemens, Technology and mechanical properties of advanced g-TiAl based alloys, Int. J. Mat. Res. 100 (2009) 1021-1030.

DOI: 10.3139/146.110154

[7] E. Schwaighofer, H. Clemens, S. Mayer, J. Lindemann, J. Klose, W. Smarsly, and V. Güther, Microstructural design and mechanical properties of a cast and heat-treated intermetallic multiphase γ-TiAl based alloy, Intermetallics 44 (2014) 128-140.

DOI: 10.1016/j.intermet.2013.09.010

[8] E. Schwaighofer, B. Rashkova, H. Clemens, A. Stark, and S. Mayer, Effect of carbon additions on solidifaction behavior, phase evolution and creep properties of an intermetallic b-stabilized TiAl based alloy, Intermetallics 46 (2014) 173-184.

DOI: 10.1016/j.intermet.2013.11.011

[9] M. Schloffer, B. Rashkova, T. Schöberl, E. Schwaighofer, Z. Zhang, H. Clemens, S. Mayer, Evolution of wo-phase in a b-stabilized multi-phase TiAl alloy and its effect on hardness, Acta Mater. 64 (2014) 241-252.

DOI: 10.1016/j.actamat.2013.10.036

[10] H. Clemens, W. Smarsly, V. Güther, S. Mayer, Advanced intermetallic titanium aluminides, DOI: 10. 1002/9781119296126; Wiley, USA, 2016, 1189-1200.

DOI: 10.1002/9781119296126.ch203

[11] S. Biamino, A. Penna, U. Ackelid, S. Sabbadini, O. Tassa, P. Fino, M. Pavese, P. Gennaro, C. Badini, Electron beam melting of Ti–48Al–2Cr–2Nb alloy: Microstructure and mechanical properties investigation, Intermetallics 19 (2011) 776-781.

DOI: 10.1016/j.intermet.2010.11.017

[12] N. Rizzi, Structural Aluminides for Elevated Temperature Applications, TMS 2008 Annual Meeting, New Orleans, LA, USA (March 9-13, 2008).

[13] T. Tetsui, Application of TiAl in a turbocharger for passenger vehicles, Adv. Eng. Mat. 3 (2001) 307-310.

DOI: 10.1002/1527-2648(200105)3:5<307::aid-adem307>3.0.co;2-3

[14] W. Smarsly, H. Baur, H. Clemens, T. Khan, and M. Thomas, Titanium aluminides for automotive and gas turbine application, in: K. Hemker et al. (Eds), Structural Intermetallics 2001, TMS, Warrendale, PA, USA, 2001, pp.25-34.

[15] B. B. Bewlay, S. Nag, A. Suzuki, M. J. Weimer, TiAl alloys in commercial aircraft engines, Mater. High Temp., 33 (2016) 549-559.

DOI: 10.1080/09603409.2016.1183068

[16] J. Aguilar, A. Schievenbusch and O. Kättlitz, Investment casting technology for production of TiAl low pressure turbine blades - process engineering and parameter analysis, Intermetallics 19 (2011) 757-761.

DOI: 10.1016/j.intermet.2010.11.014

[17] D. Hautmann, Titanium aluminide – a class all by itself, MTU Aero Engines Report 1 (2013) 24-29.