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Instrumented indentation test for hardness and materials parameter from millinewtons to kilonewtons
(2002)
The ISO/DIS 14577 Metallic materials - Instrumented indentation test for hardness and
materials parameters Part 1-3 (IIT) concerns test forces up to 30 kN. The paper reports on
IIT at test forces ranging from 0.002 N to 1000 N on non magnetizable steel X8 CrMnN 18-
18 (1.386) with well polished surface using Vickers indenter and four hardness machines of
different design (Nano Indenter XP, Fischerscope H 100, Zwick Z005 with Universal
hardness head and a laboratory four-column set up materials testing machine) according to
the standard. Using mostly identical test parameters the results of the different machines are
almost in good agreement. Estimated small differences are caused by the different
uncertainties of the used machines and by different methods of mathematical analysis of the
detected raw data.