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Titanium Aluminide Casting Technology Development

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Abstract

Titanium aluminide alloys have been successfully introduced into civil aircraft engine technology in recent years, and a significant order volume increase is expected in the near future. Due to its beneficial buy-to-fly ratio, investment casting bears the highest potential for cost reduction of all competing production technologies for TiAl-LPTB. However, highest mechanical properties can be achieved by TiAl forging. In view of this, Access e.V. has developed technologies for the production of TiAl investment cast parts and TiAl die cast billets for forging purposes. While these parts meet the highest requirements, establishing series production and further optimizing resource and economic efficiency are present challenges. In order to meet these goals, Access has recently been certified according to aircraft standards, aiming at qualifying parts for production on technology readiness level 6. The present work gives an overview of the phases of development and certification.

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References

  1. European Commission, Flightpath 2050. https://ec.europa.eu/transport/sites/transport/files/modes/air/doc/flightpath2050.pdf. Assessed 01 July 2017

  2. Airbus S.A.S., O & D. http://www.airbus.com/company/market/orders-deliveries/. Assessed 1 June 2017

  3. Boeing, Orders and Deliveries. http://www.boeing.com/commercial/#/orders-deliveries. Accessed 5 July 2017

  4. MTU Aero Engines, Pilot concepts for commercial applications: geared turbofan™ and other concepts. http://www.mtu.de/technologies/technologies-for-the-future/engines-to-come/commercial-engines/. Accessed 5 July 2017

  5. ISO 16290:2013 Space systems—Definition of the Technology Readiness Levels (TRLs) and their criteria of assessment. ISO. 14 October 2013.

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Acknowledgements

Access e.V. hereby expresses its gratitude to the State of North Rhine-Westphalia and the German Federal Ministry for Economic Affairs and Energy (LuFo Program) for their financial support funding of TiAl research at Access. Access e.V. would also like to thank their project partners Safran, Rolls-Royce, MTU and Leistritz for their outstanding cooperation in the joint projects.

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Authors and Affiliations

  1. Access e.V., Intzestraße 5, 52072, Aachen, Germany

    Matthias Bünck, Todor Stoyanov, Jan Schievenbusch, Heiner Michels & Alexander Gußfeld

Authors
  1. Matthias Bünck
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  2. Todor Stoyanov
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  3. Jan Schievenbusch
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  4. Heiner Michels
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  5. Alexander Gußfeld
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Corresponding author

Correspondence to Matthias Bünck.

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Bünck, M., Stoyanov, T., Schievenbusch, J. et al. Titanium Aluminide Casting Technology Development. JOM 69, 2565–2570 (2017). https://doi.org/10.1007/s11837-017-2534-0

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  • DOI: https://doi.org/10.1007/s11837-017-2534-0

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