The engineers of Chain Energy Metallography have combined theory with practice to organize and summarize relevant knowledge about Vickers hardness testing for the benefit of readers. It's rare to see, it's so comprehensive!
1. Vickers hardness test
》Vickers hardness testing is suitable for various applications, including micro hardness testing. On this page, you can find instructions on Vickers hardness testing, practical information on how to apply this method, and a list of micro hardness testing machines used for Vickers hardness testing.
2. Overview of Vickers hardness testing
》Suitable for micro hardness testing;
》It can be used for measuring the depth of hardness of hardened layers, testing the end hardenability, and testing the hardness of welded joints;
》Standards: ASTM E384, ISO 6507, and JIS Z 2244.
3. Vickers hardness test definition
》Vickers hardness testing is a universal hardness testing method suitable for performing macro and micro hardness tests. The load range of this test is wide and suitable for various applications and materials;
》Compared with other hardness tests, Vickers hardness testing is usually considered simpler to use: universal or micro hardness testers can be used for testing; The required calculations do not depend on the size of the indenter; The same indenter (diamond cone) can be used for all materials without considering hardness.
4. Vickers hardness calculation
》Calculate the Vickers hardness test (HV) results by optically measuring the diagonal length of the indentation left by the indenter. Afterwards, tables or formulas will be used to convert the results to HV
》Load range: 10 gf up to 100 kgf
5. Vickers hardness 7-step measurement method
》Using a hardness testing machine
Place the sample on the loading platform;
Click and drag the mouse to place the sample in place;
● Rolling to focus;
● Select testing methods and loads;
● Select the objective lens and job name;
● Use the Omnidirectional (360-degree) camera to position the indenter;
● Start testing
6. Surface preparation
》Before placing the sample material into the micro hardness testing machine, it should be ensured that the material has been properly prepared;
》The surface conditions required for Vickers hardness testing depend on the load used;
Macrohardness test (load greater than 1 kgf)