An abscess is a collection of pus in any part of the body. In most cases, the area around an abscess is swollen and inflamed. Abscesses occur when an area of tissue becomes infected and the body's immune system tries to fight it. White blood cells (WBCs) move through the walls of the blood vessels into the area of the infection and collect in the damaged tissue. During this process, pus forms.
Define casting: something (such as the excrement of an earthworm) that is cast out or off; the act of one that casts: such as â casting in a sentence something (such as the excrement of an earthworm) that is cast out or off; the act of one that casts: such asâ¦ See the full definition
Casting alloys are alloys that contain a total of up to 20% silicon, magnesium and copper as alloying elements and can only be formed by casting. The starting material is usually secondary aluminium (aluminium recovered from scrap). Here, the need for favourable casting properties is of primary concern.