COMPARISON BETWEEN VICKERS HARDNESS AND INDENTATION HARDNESS |
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| Th. Choudoba, M. Griepentrog, U. Beck |
- Abstract:
- The Vickers hardness is an often used hardness definition, mainly in the force range above 0.5 N. With decreasing film thickness and the need of lower loads, depth and force sensing measurement techniques became more and more important and a new indentation hardness was introduced, finally resulting in the international standard ISO 14577. Therefore investigations regarding the comparability of both hardness definitions are of high interest. In principle it should be possible to obtain the same hardness number with both measurement methods if the true contact area can be determined. The agreement is checked for a large selection of materials and instruments for a force of 0.5 N (HV0.051). The calculation of the correct contact area from depth sensing measurements is also checked by a comparison of the indentation modulus with the Young’s modulus, obtained with other methods.
- Download:
- IMEKO-TC5-2002-011.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC5
- Event name:
- Joint International Conference on Force, Mass, Torque, Hardness and Civil Engineering Metrology in the age of globalization
- Title:
- 8th HARDMEKO Conference on Hardness Measurement (together with 18th TC3 Conference on Force, Mass and Torque and 1st TC20 Conference on Civil Engineering Metrology)
- Place:
- Celle, GERMANY
- Time:
- 24 September 2002 - 26 September 2002