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vol 67 / October, 2024
Article

DOI 10.17586/0021-3454-2023-66-12-1060-1066

UDC 921.01

EVALUATION OF MATERIAL HARDNESS USING WEAR TESTING BY CHORD METHOD

L. V. Efremov
St. Petersburg State Engineering Institute, Department of Abrasive Technologies; Professor


A. V. Tikalov
Peter the Great St. Petersburg Polytechnic University, Saint Petersburg, 195251, Russian Federation; JSC “Compressor”, Saint Petersburg, 194044, Russian Federation; Postgraduate; Head of Section


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Reference for citation: Efremov L. V., Tikalov A. V. Evaluation of material hardness using wear testing by chord method. Journal of Instrument Engineering. 2023. Vol. 66, N 12. P. 1060—1066 (in Russian). DOI: 10.17586/0021-3454-2023-66-12-1060-1066.

Abstract. A new method for assessing the hardness of materials by testing their samples for wear by the chord method (“block-on-ring”) is proposed. It is based on the principles of determining hardness with stationary hardness testers and results of a previously performed analysis of the correlation dependence of Mohs hardness on the material resistance to wear. Such dependencies are obtained by measuring the wear segment chord from cutting a disk into a flat sample for a selective set of materials in a wide range of hardness.
Keywords: wear, wear resistance, sample, evaluation, segment, testing, friction, chord, block-on-ring

References:
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