A fracture-resistant high-entropy alloy for cryogenic applications

• DOI: 10.1126/science.1254581
• Publication Date: 2014-09-05T02:08:48Z
• Authors: Bernd Gludovatz; Anton Hohenwarter; Dhiraj Catoor; Edwin H. Chang; Easo P. George; Robert O. Ritchie
• Keywords: Ductility (Earth science); Brittleness

A metal alloy that is stronger when cold Metal alloys normally consist of one dominant element, with others in small amounts to improve specific properties. For example, stainless steel primarily iron nickel and chromium but may contain trace other elements. Gludovatz et al. explored the properties a high-entropy made from equal chromium, manganese, iron, cobalt, nickel. Not only does this show excellent strength, ductility, toughness, these at cryogenic temperatures where most change ductile brittle. Science , issue p. 1153