There are currently 8 terms in this directory beginning with the letter I.
An element that is allowed into a metal or alloy. Impurities slightly change the properties of the material in some circumstances and can completely damage it in others.
Nonmetallic materials that become part of a metal matrix usually through reoxidation, refractories, slag, and deoxidization products.
Particles of slag, refractory materials, sand or de-oxidation products trapped in the casting during pouring solidification.
Parts formed of a second material placed in the mold before pouring, such as a steel pin that is required to be bonded to an aluminum casting.