Since the necessary calculations are independent of the indenter’s size and the indenter may be used for any materials regardless of hardness, the Vickers test is frequently simpler to apply than other hardness tests. The fundamental idea, as with all conventional hardness measurements, is to look at a material’s resistance to plastic deformation coming from a known source. All metals can be tested with the Vickers test, which also has one of the broadest scales of any hardness test.

The Vickers Pyramid Number (HV) or Diamond Pyramid Hardness is the term for the hardness measurement provided by the test (DPH). Although the hardness value can be expressed in pascals, pressure, which also employs the same units, should not be confused with it. The hardness number is determined by the load over the surface area of the indentation and not the area normal to the force and does therefore not pressure.

The following Vickers Scales are used in Universal Hardness Tester for Vickers / Knoop, Rockwell and Brinell: HV5, HV10, HV20, HV30, HV40, HV50, HV60, HV80, HV100, HV120

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