As a result of prolonged heating or of slow cooling after partial or full transformation, atoms of carbon and a metallic element migrate to the grain boundaries. The atoms here gather and combine as carbides. In high chromium alloys, the affinity (attraction) of chromium and carbon for each other leads to the formation of a thin inter-granular layer of chromium carbides.
Welding Tech
The chemical combination of carbon with some other element. A metallic carbide takes the form of very hard crystals.
The action by which the liquid surface is elevated or depressed where it contacts a solid because the liquid molecules are attracted to one another and to the solid molecules.
The final pass of a weld joint.
Deviation from edge straightness, usually the greatest deviation of side edge from a straight line.