GB/T 21838.1-2008
Metallic materials.Instrumented indentation test for hardness and materials parameters.Part 1:Test method (English Version)

Standard No.

GB/T 21838.1-2008

Language

Chinese, Available in English version

Release Date

2008

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Status

Be replaced 2020-07

Replace By

GB/T 21838.1-2019

Latest

GB/T 21838.1-2019

Scope

This part specifies the methods for the determination of hardness and material parameters by the instrumented indentation test method for metallic materials within the three ranges given in Table 1. Table 1 Application range Conventional range Micro range Nano range 2 N≤F≤80 kN F<2 N, h>0.2μm h≤0.2 μm The actual shape, function of the indenter contact area of the testing machine used affects the calculation of the material parameters. Therefore, careful calibration of the instrument and indenter shape is required in order to achieve an acceptable reproducibility of material parameters measured by different instruments. See Appendix A for determination of hardness and other material parameters. Carbide indenters are usually used in the conventional range, because the indenters are easily damaged when the contact pressure is large. For samples with high hardness and elastic modulus, the influence of indenter deformation on test results should be considered. Note: This standard also applies to thin metallic and non-metallic coatings and non-metallic materials. In this case, reference should be made to the relevant standard (see 6.3)

GB/T 21838.1-2008 Referenced Document

• GB/T 21838.2-2008 Metallic materials. Instrumented indentation test for hardness and materials parameters. Part 2: Verification and calibration of testing machines*， 2008-06-20 Update
• GB/T 21838.4-2008 Metallic materials.Instrumented indentation test for hardness and materials Parameters.Part 4:Test method for metallic and non-metallic coatings
• GB/T 3505 Geometrical Product Specifications(GPS).Surface texture:Profile method.Terms,definitions and surface texture parameters*， 2009-03-16 Update
• JJF 1059 Evaluation and Expression of Uncertainty in Measurement

GB/T 21838.1-2008 history

• 2019 GB/T 21838.1-2019 Metallic materials—Instrumented indentation test for hardness and materials parameters—Part 1:Test method
• 2008 GB/T 21838.1-2008 Metallic materials.Instrumented indentation test for hardness and materials parameters.Part 1:Test method

GB/T 21838.1-2008 -All Parts