ISO 14577-1:2015 金属材料 硬度和材料参数测量和确认试验 第1部分：试验方法

标准编号：ISO 14577-1:2015

中文名称：金属材料 硬度和材料参数测量和确认试验 第1部分：试验方法

英文名称：Metallic materials — Instrumented indentation test for hardness and materials parameters — Part 1: Test method

发布日期：2015-07

标准范围

This part of ISO 14577 specifies the method of instrumented indentation test for determination ofhardness and other materials parameters for the following three ranges:— macro range: 2 N ≤ F ≤ 30 kN;— micro range: 2 N > F; h > 0,2 μm;— nano range: h ≤ 0,2 μm.For the nano range, the mechanical deformation strongly depends on the real shape of indenter tip and thecalculated material parameters are significantly influenced by the contact area function of the indenterused in the testing machine. Therefore, careful calibration of both instrument and indenter shape isrequired in order to achieve an acceptable reproducibility of the materials parameters determined withdifferent machines.The macro and micro ranges are distinguished by the test forces in relation to the indentation depth.Attention is drawn to the fact that the micro range has an upper limit given by the test force (2 N) and alower limit given by the indentation depth of 0,2 μm.The determination of hardness and other material parameters is given in Annex A.At high contact pressures, damage to the indenter is possible. For this reason in the macro range,hardmetal indenters are often used. For test pieces with very high hardness and modulus of elasticity,permanent indenter deformation can occur and can be detected using suitable reference materials. It isnecessary that its influence on the test result be taken into account.This test method can also be applied to thin metallic and non-metallic coatings and non-metallicmaterials. In this case, it is recommended that the specifications in the relevant standards be taken intoaccount (see also 6.3 and ISO 14577-4).

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