Wear Investigation of Aluminum Alloy Surface Layers Fabricated through Friction Stir Welding Method

Figure 9

Optical microstructure image. (a) Al5456 base metal, (b) Al6262 base metal, (c) HAZ in Al5456, (d) HAZ in Al6262, and (e) weld nugget.

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(b)

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(d)

(e)