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Introduction to Vickers hardness tester
2024-05-23
The Vickers hardness tester was first proposed by British scientist Vickers. Under a load of 49.03~980.7N, a square conical diamond with a relative angle of 136 ° is pressed into the surface of the material. After holding it for the specified time, the diagonal length of the indentation is measured, and the hardness is calculated using the formula. It is suitable for hardness measurement of larger workpieces and deeper surface layers. Vickers hardness still has a small load Vickers hardness, with a test load of 1.961~<49.03N, which is suitable for measuring the hardness of thinner workpieces, tool surfaces, or coatings; Micro Vickers hardness, test load<1.961N, suitable for hardness measurement of metal foils and extremely thin surface layers.
HV - suitable for microscopic analysis. The Vickers hardness (HV) is obtained by applying a load of up to 120kg and a diamond square cone indenter with a top angle of 136 ° to the surface of the material. The load value is divided by the surface area of the material's indentation pits. Vickers hardness tester
The Vickers hardness tester has a wide measurement range and can measure almost all metal materials currently used in industry, from very soft materials (several Vickers hardness units) to very hard materials (3000 Vickers hardness units).
