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How is the Vicker’s hardness number defined as?

How is the Vicker’s hardness number defined as? Correct Answer 1.8544P 1/D2

The diamond-pyramid number (DPH) is defined as the applied load divided by the surface area of indentation. Vickers hardness number (VHN or VPN) is also known as diamond-pyramid hardness number. Mathematically, it is defined as 1.8544P 1/D2 . This can be calculated since angle of indenter is known as 136 degrees.

Related Questions

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