What are the advantages of using a Vickers hardness tester for testing?

Stable measurement standards: The main advantage of the Vickers hardness test lies in the fact that its hardness value is independent of the magnitude of the force. As long as the material has uniform hardness, the force can be chosen arbitrarily while the hardness value remains unchanged. This is equivalent to having a unified scale across a broad range of hardness. In this regard, it is superior to Rockwell hardness.
In the low to medium hardness range, on the same uniform material, the results of Vickers and Brinell hardness tests will yield approximate hardness values. For example, when the hardness value is below 400, $HV \approx HB$. The force of a Vickers hardness tester can be as small as 10gf, and the indentation is very small, making it particularly suitable for testing thin and small materials.

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