Developing aluminum nanocomposites via severe plastic deformation

S. Goussous*, W. Xu, K. Xia

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


Severe plastic deformation (SPD) processes were used in mixing and consolidating aluminum based nanocomposites containing various amounts of C nanoparticles. A planetary ball milling machine was used to mix the powders, and back pressure equal channel angular pressing (BP-ECAP) for consolidation. For comparison, Al-Al2O3 nanocomposites were processed by the same processing method. TEM observations showed that the combination of the two SPD processes was effective in dispersing the C nanoparticles in the Al matrix, and better dispersion was achieved by increasing the number of ECAP passes. Especially in Al-5 wt% C after ECAP consolidation for 24 passes, the compressive plastic strain was significantly improved. The Al-Al2O3 materials appeared to have better particle distribution and ductility compared to the Al-C materials although their strengths were lower.

Original languageEnglish
Article number012106
Pages (from-to)1-5
Number of pages5
JournalJournal of Physics: Conference Series
Publication statusPublished - 2010
Externally publishedYes


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