What are the advantages of using a Vickers hardness tester?

Taiwan Nakazawa Co., Ltd. answers for you: The indentation of the Vickers hardness test is a square with clear outlines and accurate diagonal measurements. Therefore, the Vickers hardness test has higher precision among commonly used hardness testing methods, and its repeatability is also very good, which is superior to the Brinell hardness tester. The Vickers hardness test has a wide measurement range and can measure almost all metal materials used in industry today, from very soft materials (a few Vickers hardness units) to very hard materials (3000 Vickers hardness units).
The advantage of the Vickers hardness test lies in the fact that its hardness value is independent of the magnitude of the test force. As long as the material has uniform hardness, any test force can be selected, and the hardness value remains unchanged. This is equivalent to having a unified scale within a very broad hardness range. This point is superior to the Rockwell hardness test.