Numéro
J. Phys. Colloques
Volume 48, Numéro C3, Septembre 1987
4th International Aluminium Lithium Conference
Page(s) C3-309 - C3-315
DOI https://doi.org/10.1051/jphyscol:1987335
4th International Aluminium Lithium Conference

J. Phys. Colloques 48 (1987) C3-309-C3-315

DOI: 10.1051/jphyscol:1987335

STRUCTURE AND PROPERTIES OF RAPIDLY SOLIDIFIED ALUMINUM-LITHIUM ALLOYS

N.J. KIM1, R.L. BYE2 et S.K. DAS2

1  Metals and Ceramics Laboratory, Allied-Signal Incorporation, P.O. Box 1021 R, Morristown, NJ 07960, U.S.A.
2  Metals and Ceramics Laboratory, Allied-Signal Incorporation, P.O. Box 1021 R. Morristown, NJ 07960, U.S.A.


Abstract
Considerable improvements have been made during the last decade in the properties of Al-Li alloys for aerospace applications. However, the development of Al-Li alloys for applications that require higher stiffness and lower density than those achieved with ingot casting technology necessitates the use of rapid solidification processing to minimize microsegregation related property deficiencies. The present paper discusses the current status of rapidly solidified Al-Li alloy development at Allied-Signal. The main emphasis of the program has been placed on the achievement of optimum properties by simple heat treatment process, which appears to be essential for the development of high-performance near net-shape Al-Li alloy forgings.