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· Inclusions in a structural steel
component can significantly
reduce its mechanical properties. The photograph shows casting slag
from a steel ingot
that was incorporated into a steel component used for pressure vessel applications.
· Inclusions in metals are frequently oxides, sulfides, etc.,
that are insoluble in the molten metal, and become trapped in the metal
during the solidification process.
· The difference between the
elastic properties of the inclusion and the metal matrix causes stress concentration
at the interface during mechanical deformation.
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