A fracture-resistant high-entropy alloy for cryogenic applications
2014; American Association for the Advancement of Science; Volume: 345; Issue: 6201 Linguagem: Inglês
10.1126/science.1254581
ISSN1095-9203
AutoresBernd Gludovatz, Anton Hohenwarter, D. Catoor, Edwin H. Chang, E.P. George, Robert O. Ritchie,
Tópico(s)High-Temperature Coating Behaviors
ResumoA 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 is primarily iron with nickel and chromium but may contain trace amounts of other elements. Gludovatz et al. explored the properties of a high-entropy alloy made from equal amounts of chromium, manganese, iron, cobalt, and nickel. Not only does this alloy show excellent strength, ductility, and toughness, but these properties improve at cryogenic temperatures where most alloys change from ductile to brittle. Science , this issue p. 1153
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