Microstructure and Mechanical Properties of MWCNTs Reinforced A356 Aluminum Alloys Cast Nanocomposites Fabricated by Using a Combination of Rheocasting and Squeeze Casting Techniques

Table 2

Grain sizes of A356 alloy and A356/MWCNTs composites.

Samples	A356	A356/MWCNT	A356/MWCNT	A356/MWCNT	A356/MWCNT	A356/MWCNT
MWCNT (wt%)	0	0.5	1	1.5	2	2.5
Grain size (𝜇m)	24.36	16.22	13.83	12.14	10.34	10.15
Standard deviation	±8.95	±6.32	±4.87	±5.47	±3.12	±4.84