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Hardness Measurements by Spherical Indenters
2000Abstract In the Brinell hardness test (Brinell, 1900) a hard spherical indenter is pressed under a fixed normal load on to the smooth surface of the metal under examination. When equilibrium has been reached, say after 15 or 30 sec., the load and indenter are removed and the diameter of the permanent impression measured.
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Indentation hardness testing of ultra hard materials
1988H. Richter, M. Petzold, G. Zahn, P. Grau
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