56 Oxide Inclusions

Oxide inclusions are particles of surface oxides on the base metal or weld filler metal that have not melted and mix with the weld metal. Oxide inclusions occur when welding metals that have tenacious surface oxide films, such as stainless steels, aluminum alloys, and titanium alloys.

Oxide Inclusion Prevention

Oxide inclusion prevention is achieved by cleaning out the joint and weld area thoroughly before welding. The weld area should be thoroughly cleaned after each pass using a wire brush.