a b c Fig. 1: Specimen shape and dimensions
A b c Fig. 1: Specimen shape and dimensions. Fig. 2: Experimental arrangement for corrosion measurement during an immersion test with a fishing line specimen.
Jan 17, 2016
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a
b
c
Fig. 1: Specimen shape and dimensions
Fig. 2: Experimental arrangement for corrosion measurement during an immersion test with a fishing line specimen. Carbon dioxide (CO2) at 0.009 atm partial pressure was bubbled through the solution throughout the immersion test
Fig.3: SEM surface morphologies and EDS spectra of anodized HP Mg (left) and ME10 (right)
Fig.4: Surface morphologies and EDS spectra of HP Mg anodized and coated with OSi (left) and BTSE (right).
Fig. 5: Surface morphologies and EDS spectra of ME10 anodized and coated with OSi (left) and BTSE ( right).
Fig.6: Surface morphologies and EDS spectra of HP Mg coated with Osi (left) and BTSE (right)
Fig.7: Surface morphologies and EDS spectra of ME10 alloy coated with Osi (left) and BTSE (right)
Fig. 8(a): Solution pH (full symbols) and corrosion behaviour as characterised by hydrogen evolution (open symbols) during the immersion tests for HP Mg and ME10
0 50 100 150 200 250 300 350
0
1
2
H2 HP Mg 1
H2 HP Mg 2
H2 ME10 1
H2 ME10 2
pH HP Mg 1 pH HP Mg 2 pH ME10 1 pH ME10 2
Immersion time, t, (hour)
Hyd
rog
en
evo
lutio
n v
olu
me
(m
L c
m-2)
5
6
7
8
9
pH
Fig. 8(b): Solution pH (full symbols) and corrosion behaviour as characterised by hydrogen evolution (open symbols) during the immersion tests for HP Mg Anodised and ME10 Anodised
0 50 100 150 200 250 300 350
0
1
2
H2 HP Mg Anodised 1
H2 ME10 Anodised 1
H2 ME10 Anodised 2
pH HP Mg Anodised 1 pH HP Mg Anodised 2 pH ME10 Anodised 1 pH ME10 Anodised 2
Immersion time, t, (hour)
Hyd
roge
n ev
olut
ion
volu
me
(mL
cm-2)
5
6
7
8
9
pH
Fig. 8(c): Solution pH (full symbols) and corrosion behaviour as characterised by hydrogen evolution (open symbols) during the immersion tests for HP Mg OSi and ME10 OSi
0 50 100 150 200 250 300 350
0.00
0.05
0.10
0.15
0.20
0.25
H2 HP Mg OSi 1
H2 ME10 OSi 1
pH HP Mg OSi 1 pH HP Mg OSi 2 pH ME10 OSi 1 pH ME10 OSi 2
Immersion time, t, (hour)
Hyd
rog
en
evo
lutio
n v
olu
me
(m
L c
m-2)
5
6
7
8
9
pH
Fig. 8(d): Solution pH (full symbols) and corrosion behaviour as characterised by hydrogen evolution (open symbols) during the immersion tests for HP Mg Anodised + OSi and ME10 Anodised + OSi
0 50 100 150 200 250 300 350
0.0
0.5
1.0
1.5
H2 HP Mg Anodised + OSi 1
H2 HP Mg Anodised + OSi 2
H2 ME10 Anodised + OSi 1
H2 ME10 Anodised + OSi 2
pH HP Mg Anodised + OSi 1 pH HP Mg Anodised + OSi 2 pH ME10 Anodised + OSi 1 pH ME10 Anodised + OSi 2
Immersion time, t, (hour)
Hyd
rog
en
evo
lutio
n v
olu
me
(m
L c
m-2)
5
6
7
8
9
pH
Fig. 8(e): Solution pH (full symbols) and corrosion behaviour as characterised by hydrogen evolution (open symbols) during the immersion tests for HP Mg Anodised + BTSE and ME10 Anodised + BTSE
0 50 100 150 200 250 300 350
0
1
2
3
H2 HP Mg Anodised + BTSE 1
H2 ME10 Anodised + BTSE 1
H2 ME10 Anodised + BTSE 2
pH HP Mg Anodised + BTSE 1 pH HP Mg Anodised + BTSE 2 pH ME10 Anodised + BTSE 1 pH ME10 Anodised + BTSE 2
Immersion time, t, (hour)
Hyd
rog
en
evo
lutio
n v
olu
me
(m
L c
m-2)
5
6
7
8
9
pH
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