Age Hardening Behavior of Al-Li Alloys Produced by Sand Mold Process

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Al-Li alloys have higher mechanical properties and more lightweight than other conventional aluminum alloys. Therefore , it is focused as a good material for weight reduction of industrial fields. However, since the Al-Li alloy are highly active and hard to cast, there has been limited research on casting. In this study, age-hardening behavior of Al-2.5mass%Li alloys cast into sand and metal mold were investigated. All alloys cast into Y-block shape sand mold, and then artificial aged after solution treated at 743K for 36ks. Because of difference in quantity of precipitation by metastable δ’(Al3Li) phase, peak hardness of metal mold casting is higher than that of sand molds castings.

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Periodical:

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Edited by:

C. Sommitsch, M. Ionescu, B. Mishra, E. Kozeschnik and T. Chandra

Pages:

1629-1633

DOI:

10.4028/www.scientific.net/MSF.879.1629

Citation:

S. Saikawa et al., "Age Hardening Behavior of Al-Li Alloys Produced by Sand Mold Process", Materials Science Forum, Vol. 879, pp. 1629-1633, 2017

Online since:

November 2016

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$38.00

* - Corresponding Author

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