TY - GEN
T1 - Scandium-enriched nanoprecipitates in aluminum providing enhanced coarsening and creep resistance
AU - De Luca, Anthony
AU - Dunand, David C.
AU - Seidman, David N.
N1 - Funding Information:
Acknowledgements The authors acknowledge partial support from the Ford-Northwestern University Alliance. DNS and DCD also acknowledge the support of the Office of Naval Research (N00014-16-1-2402). DNS and DCD disclose that they have a financial interest in NanoAl LLC which is active in the area of aluminum alloys. The authors kindly thank Drs. J. Boileau and B. Ghaffari (Ford Research Laboratory) for numerous useful discussions.
PY - 2018
Y1 - 2018
N2 - The development of high temperature aluminum alloys able to operate up to 400 ºC is crucial to replace steel and titanium and decrease the mass of vehicles in the automotive and aerospace industries. This review relates the past two decades of aluminum alloy engineering done at Northwestern University focusing on developing coherent L12 Al3M nanoprecipitates strengthened aluminum alloys that are coarsening and shear-resistant at high temperature. Starting with the Al-Sc binary system, each new generation of alloys has become more complex to improve the alloy’s mechanical properties and coarsening resistance at high temperatures. The effects of rare-earth (Er, Y, Sm, Gd, Tb, Dy, Ho, Tm, Yb, Lu), transition metals (Zr, Ti, V, Nb, Ta), inoculants (Si, In, Sb, Sr, Ge, Zn) and solid solution (Mg, Li) elements onto the L12 Al3M precipitates is reviewed. The most recent alloys have optimized strength, coarsening resistance and lower prices, opening the doors to wider application uses.
AB - The development of high temperature aluminum alloys able to operate up to 400 ºC is crucial to replace steel and titanium and decrease the mass of vehicles in the automotive and aerospace industries. This review relates the past two decades of aluminum alloy engineering done at Northwestern University focusing on developing coherent L12 Al3M nanoprecipitates strengthened aluminum alloys that are coarsening and shear-resistant at high temperature. Starting with the Al-Sc binary system, each new generation of alloys has become more complex to improve the alloy’s mechanical properties and coarsening resistance at high temperatures. The effects of rare-earth (Er, Y, Sm, Gd, Tb, Dy, Ho, Tm, Yb, Lu), transition metals (Zr, Ti, V, Nb, Ta), inoculants (Si, In, Sb, Sr, Ge, Zn) and solid solution (Mg, Li) elements onto the L12 Al3M precipitates is reviewed. The most recent alloys have optimized strength, coarsening resistance and lower prices, opening the doors to wider application uses.
KW - Aluminum alloy
KW - High-temperature alloy
KW - Precipitation strengthening
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U2 - 10.1007/978-3-319-72284-9_207
DO - 10.1007/978-3-319-72284-9_207
M3 - Conference contribution
AN - SCOPUS:85042436284
SN - 9783319722832
T3 - Minerals, Metals and Materials Series
SP - 1589
EP - 1594
BT - Light Metals 2018
A2 - Martin, Olivier
PB - Springer International Publishing
T2 - International symposium on Light Metals, 2018
Y2 - 11 March 2018 through 15 March 2018
ER -