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Super-hard metal ‘four times tougher than titanium’ | BBC News

Super-hard metal ‘four times tougher than titanium’ | BBC News

A super-hard metal has been made in the laboratory by melting together titanium and gold.

The alloy is the hardest known metallic substance compatible with living tissues, say US physicists.

The material is four times harder than pure titanium and has applications in making longer-lasting medical implants, they say.

Conventional knee and hip implants have to be replaced after about 10 years due to wear and tear.

Source: Super-hard metal ‘four times tougher than titanium’ – BBC News