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IPFS News Link • Inventions

New alloy claimed to have higher strength-to-weight ratio than any other metal

• http://www.gizmag.com, By Ben Coxworth

With that in mind, researchers from North Carolina State University and Qatar University have developed a new alloy that reportedly has a low density similar to that of aluminum, but that's stronger than titanium.

The material is a type of high-entropy alloy, meaning that it's made up of at least five metals in more or less equal amounts. In this case, those metals are lithium, magnesium, titanium, aluminum and scandium.

"It has a combination of high strength and low density that is, as far as we can tell, unmatched by any other metallic material," said NCSU's Dr. Carl Koch, senior author of a paper on the research. "The strength-to-weight ratio is comparable to some ceramics, but we think it's tougher – less brittle – than ceramics."


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