Specimen

Al grain

size (µm)

Pore size

(µm)

Pore shape

Surface

Porosity (%)

Pore distribution

Al 6061

(No wax)

45

12

Round

3.5

Uniform

Al 6061

(1.5% wax)

45

20

Round

10.3

Uniform

Al A380M

25

31

Irregular

2.1

Non-uniform