Published: Jan 2007
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SPECIAL HARDNESS TESTING PROCEDURES INCLUDE THE MARTENS scratch hardness determination as well as the Mohs scratch hardness. In the Martens procedure, a specimen surface under a specified test force is scratched by a diamond cone with a 90-deg apical angle. The test force F is varied until a scratch width of 10 μm is microscopically measured. In this way, a particular scratch hardness value can be attributed to the specimen.
Metallography, Materialography, Preparation methods, Sample preparation, Mechanical polishing, Electrolytic polishing, Cutting, Sectioning, Hot mounting, Cold mounting, Grinding, Polishing, Polishing artifact, Etching, Microscope, Quantitative metallography, Stereology, Vickers hardness, Quality control, Microstructure