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Average pit depth after four weeks exposure.<br />

Mud 1 Mud 2 Mud 3 Mud 4 Mud 5<br />

200<br />

150<br />

100<br />

50<br />

Pit depth [m]<br />

0<br />

6060 / etched<br />

6060 / anodised<br />

6016 / etched<br />

6016 / Ti+Zr cc<br />

5754/ etched<br />

5754 / Ti+Zr cc<br />

5018 / etched<br />

5018 / Ti cc<br />

Date: 2004-01-13 • Page: 19 • Hydro Aluminium

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