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Processing and Mechanical Properties of Ti//(alumina)mb/Al Core//Ti Sandwich Panels

Published online by Cambridge University Press:  15 February 2011

S. P. Rawal ,
B. R. Lanning  and
M. S. Misra
S. P. Rawal
Affiliation:
Martin Marietta Technologies, P.O. Box, 179, M.S.-F3085, Denver, CO 80201
B. R. Lanning
Affiliation:
Martin Marietta Technologies, P.O. Box, 179, M.S.-F3085, Denver, CO 80201
M. S. Misra
Affiliation:
Martin Marietta Technologies, P.O. Box, 179, M.S.-F3085, Denver, CO 80201
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Abstract

Several sandwich panels with Ti-6AI-4V facesheets and syntactic metal foam (i.e., alumina microballoons (mb) in aluminum matrix) core were produced by a single step casting press. Optical microscopy and scanning acoustic microscopy techniques were used to examine the integrity of Ti/Al and mb/Al matrix interfaces. Mechanical property tests including compression, tension, flexure, and impact tests were performed to determine the characteristics of as-cast Ti//(alumina)mb/Al//Ti laminates. Presented in this paper are the specific details of design, processing, and mechanical behavior of the as-cast laminates.

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References

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