Micro Hardness Tester

Hardness test methods use an indenter probe that is displaced into a surface under a specific load. The indentation typically has a defined dwell time. In traditional mechanical testing, the size or depth of indentation is measured to determine hardness. Hardness testing is divided into two ranges: macrohardness and microhardness. Macrohardness covers testing with an applied load over 1 kg or about 10 Newton (N). Microhardness testing, with applied loads under 10 N, is typically used for smaller samples, thin specimens, plated surfaces or thin films. The two most common microhardness techniques are Vickers and Knoop hardness tests.

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