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A comment on Super-hard metal 'four times tougher than titanium'. Parent comment

Re:Super-hard metal 'four times tougher than titanium' by abakker on Sunday July 24, 2016 @01:49PM (#12154024)
A relevant test for toughness is called the Charpy impact test. It uses a fixed size piece of material and a fixed weight pendulum to snap the material. The amount of force needed to snap the material becomes a score for toughness.
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Re:Super-hard metal 'four times tougher than titanium' by abakker on Sunday July 24, 2016 @05:45PM (#12155061)
According to the ASM manual in front of me, toughness is the ability of metal to absorb energy and deform plastic ally before fracturing. The Charpy test is a test of absorbed energy, not force.

I misspoke earlier when I said force. I was inadvertently sloppy in my writing.

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