S1. Fabrication and Laser shock peening of AA 6061-graphene nanocomposites Gas atomised, near spherical shape AA 6061 (~ 10 µm in dia, >99.98% purity) supplied by Ampal Inc. NJ, the USA is shown in Fig.S1a, and Fig.S1b summarises the various elements. Fig.S2a & S2b shows the transmission electron microscopic nano-flakes (TEM; Tecnai, G 2 20 Twin) of graphene along with SAED pattern inset. Fig.S3 shows the schematics of the fabrication method and Fig.S4 Schematic of peening process of AA 6061 – graphene nanocomposites along with laser peening parameters are given in Table.S1. Fig.S1 (a) SEM morphology and (b) X-ray fluorescence spectroscopic profile of AA 6061 alloy powder (b (a
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S1. Fabrication and Laser shock peening of AA 6061-graphene nanocomposites
Gas atomised, near spherical shape AA 6061 (~ 10 µm in dia, >99.98% purity) supplied
by Ampal Inc. NJ, the USA is shown in Fig.S1a, and Fig.S1b summarises the various elements.
Fig.S2a & S2b shows the transmission electron microscopic nano-flakes (TEM; Tecnai, G2 20
Twin) of graphene along with SAED pattern inset. Fig.S3 shows the schematics of the
fabrication method and Fig.S4 Schematic of peening process of AA 6061 – graphene
nanocomposites along with laser peening parameters are given in Table.S1.
Fig.S1 (a) SEM morphology and (b) X-ray fluorescence spectroscopic profile of AA 6061
alloy powder
Fig.S2 TEM nanostructures of (a) nano-flake and (b) high-resolution single atomic layer of
graphene (inset: shows the SAED pattern)
(b)(a)
Fig.S3 Schematics of fabrication method of AA 6061 – graphene nanocomposites