问答详情-Why is alloyed gold one of the hardest metals?

问答详情-Why is alloyed gold one of the hardest metals?

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Why is alloyed gold one of the hardest metals?

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Why is alloyed gold one of the hardest metals?

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0861788249

0861788249 2017-01-12 10:15:41

It's not. Gold itself is alloyed because it is about as soft as Lead. Gold alloys are still just a little harder than copper, which is softer then Iron. The hardest metal alloy known is a mixture of osmium and iridium. It is used on metal surfaces which get a lot of wear and abrasion. One common use is to plate the bearings in ball point pens.
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