Embrittlement

Name:
Embrittlement
Detailed information:
Hardening of a metal (especially steel) or of an ABS resin, resulting in loss of strength and impairment of other physical properties. In metals, the primary cause is exposure to hydrogen, though other factors such as corrosion also are involved. In copolymer plastics, such as ABS resins, embrittlement is due to formation of a vitreous matrix as well as to oxidation of the butadiene particles in the matrix. Embrittlement due to thermal shock occurs in pressurized-water reactors. This may result in rupture of reactor walls and is a constant source of trouble in reactors of this type.