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Microcompression study of Al-Nb nanoscale multilayers

  • Youbin Kim (a1), Arief Suriadi Budiman (a2), J. Kevin Baldwin (a2), Nathan A. Mara (a2), Amit Misra (a2) and Seung Min Han (a3)...


Microcompression tests were performed on the Al/Nb multilayers of incoherent interfaces with the layer thicknesses of 5 nm Al/5 nm Nb and 50 nm Al/50 nm Nb. The Al-Nb multilayers showed increase in strength as the layer thickness was reduced; the average flow stresses at 5% plastic strain from the 5 nm Al/5 nm Nb and 50 nm Al/50 nm Nb layer thickness specimens were determined to be 2.1 GPa and 1.4 GPa respectively. The results from this Al-Nb microcompression study were compared with those of the previous report on Cu-Nb multilayer microcompression results that indicated that the flow stresses of the Al-Nb multilayer are lower than those of Cu-Nb with the same bilayer spacing. The observed difference in strength was attributed to a potential difference in the interfacial strength of the two incoherent multilayer systems.


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Microcompression study of Al-Nb nanoscale multilayers

  • Youbin Kim (a1), Arief Suriadi Budiman (a2), J. Kevin Baldwin (a2), Nathan A. Mara (a2), Amit Misra (a2) and Seung Min Han (a3)...


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