TY - GEN
T1 - The development of a microgravity experiment involving columnar to equiaxed transition for solidification of a Ti-Al based alloy
AU - Lemoisson, F.
AU - Fadden, S. Mc
AU - Rebow, M.
AU - Browne, D. J.
AU - Froyen, L.
AU - Voss, D.
AU - Jarvis, D. J.
AU - Kartavykh, A.
AU - Rex, S.
AU - Herfs, W.
AU - Groethe, D.
AU - Lapin, J.
AU - Budenkova, O.
AU - Etay, J.
AU - Fautrelle, Y.
PY - 2010/8/18
Y1 - 2010/8/18
N2 - The authors are members of the integrated project Intermetallic Materials Processing in Relation to Earth and Space Solidification (IMPRESS), funded within the European Framework (FP6). One of the aims of IMPRESS is to develop new alloys and processes for the casting of TiAl-based turbine blades for the next generation of aero and industrial gas turbine engines. Within IMPRESS, two related issues have been identified during the primary solidification stage, namely, segregation and the columnar-to-equiaxed transition (CET). The authors have set out to isolate the effects of thermo-solutal convection, by designing a microgravity experiment to be performed on a European Space Agency platform. This experiment will investigate the CET formation during solidification. It is planned to use a sounding rocket providing a microgravity time of approximately twelve minutes. The results of this microgravity solidification experiment will be used as unique benchmark data for development and validation of new computational models of TiAl solidification. This in turn will produce accurate models and ultimately new robust industrial processes by project partners in the aerospace industry. The evolution of the design of the microgravity experiment is discussed and the results of preliminary ground reference experiments are presented. Future plans and objectives for the project are also highlighted.
AB - The authors are members of the integrated project Intermetallic Materials Processing in Relation to Earth and Space Solidification (IMPRESS), funded within the European Framework (FP6). One of the aims of IMPRESS is to develop new alloys and processes for the casting of TiAl-based turbine blades for the next generation of aero and industrial gas turbine engines. Within IMPRESS, two related issues have been identified during the primary solidification stage, namely, segregation and the columnar-to-equiaxed transition (CET). The authors have set out to isolate the effects of thermo-solutal convection, by designing a microgravity experiment to be performed on a European Space Agency platform. This experiment will investigate the CET formation during solidification. It is planned to use a sounding rocket providing a microgravity time of approximately twelve minutes. The results of this microgravity solidification experiment will be used as unique benchmark data for development and validation of new computational models of TiAl solidification. This in turn will produce accurate models and ultimately new robust industrial processes by project partners in the aerospace industry. The evolution of the design of the microgravity experiment is discussed and the results of preliminary ground reference experiments are presented. Future plans and objectives for the project are also highlighted.
UR - http://www.scopus.com/inward/record.url?scp=77955535651&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.649.17
DO - 10.4028/www.scientific.net/MSF.649.17
M3 - Conference contribution
AN - SCOPUS:77955535651
SN - 0878492909
SN - 9780878492909
T3 - Materials Science Forum
SP - 17
EP - 22
BT - Solidification and Gravity V
T2 - 5th International Conference on Solidification and Gravity
Y2 - 4 September 2008 through 5 September 2008
ER -