where Hv is the Vickers hardness number, P is the applied load in kg, d is the average measured diagonal lengths of the diamond impression in mm, and L is the large diagonal length in mm. The duration of load application varies from 10 to 20 s. In general, an average hardness value ...
The Vickers test can be used for all metals and has one of the widest scales among hardness tests. The unit of hardness given by the test is known as theVickers Pyramid Number(HV) orDiamond Pyramid Hardness(DPH). The hardness number can be converted into units of pascals , but should no...
Vickers Hardness number by the use of a formula, or more often a chart based on the formula. When choosing the test load, the highest load that can be performed on the specimen will give the most accurate results. A higher load produces a larger indentation with better measurement resolution...