Related Experiment Video
Updated: Oct 11, 2025
08:58
Atomic Force Microscopy Cantilever-Based Nanoindentation: Mechanical Property Measurements at the Nanoscale in Air and Fluid
Published on: December 2, 2022
3.2K
CCM PILOT STUDY OVERVIEW: GEOMETRICAL MEASUREMENT OF THE ROCKWELL DIAMOND INDENTER
R R Machado1, S Low2, A Germak3
1INMETRO, Duque de Caxias, Brazil.
Acta IMEKO (2012)
|December 3, 2021
Summary
This study assessed national metrology institutes
Area of Science:
- Metrology
- Materials Science
- Mechanical Engineering
Background:
- Accurate characterization of indenter geometry is crucial for reliable hardness testing.
- The International Committee for Weights and Measures (CIPM) coordinates key comparisons to ensure global measurement consistency.
Purpose of the Study:
- To evaluate the measurement capabilities of National Metrology Institutes (NMIs) in characterizing Rockwell hardness diamond indenter geometry.
- To assess the consistency and accuracy of indenter parameter measurements across participating NMIs.
Main Methods:
- Participants utilized advanced measurement systems to determine key geometric parameters of diamond indenters.
- Parameters measured included cone angle, generatrix straightness, tip radius, local radius deviation, and tilt angle.
Main Results:
- The study provided an overview of the capabilities of NMIs in indenter geometry characterization.
- Identified variations in measurement results, highlighting areas for methodological improvement.
Conclusions:
- The CCM Pilot Study demonstrated the collective ability of NMIs to perform complex indenter metrology.
- Further efforts are needed to harmonize measurement techniques and enhance the accuracy of Rockwell hardness testing globally.
