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University of Zenica , Zenica , Bosnia and Herzegovina
University of Zenica , Zenica , Bosnia and Herzegovina
University of Zenica , Zenica , Bosnia and Herzegovina
Proper calibration of the device is important to prevent potential sources of error, which ensures that the test results most effectively represent the value of the sample being tested. In microhardness testing, the loading force does not exceed 1.96 N. The test surface requires a more complex metallographic preparation, and the smaller the injection force, the surface must be finer prepared. Precision measuring microscopes with an accuracy of ± 0,5µm are used to measure the size of the prints. Calibration of the Zwick Microhardness Testing Device of the Kemal Kapetanović Institute Metallographic Laboratory was performed for measuring ranges HV 0.3. The permissible deviation of the device including the measurement uncertainty shall meet the requirements of the standard for this area.
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