Determination of the Strain-Hardening Exponent of a Metallic Material by Low-Speed Impact Indentation
А. P. KrenInstitute of Applied Physics, Belarussian Academy of Sciences, 270072, Minsk, BelarusВ. А. РудницкийInstitute of Applied Physics, Belarussian Academy of Sciences, 270072, Minsk, Belarus
2019en
ABI
Abstract
The methods of determining strain-hardening exponent n using dynamic indentation data with allowance for loading conditions, namely, the energy before an impact and the indenter parameters, are considered. The values of n that are characteristic of impact interaction with materials having various hardnesses (steel, aluminum, copper) are obtained and compared with the values measured in static indentation. n is found to depend on the strain and the strain rate.
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