Answer :
ASTM E384-99 (2014) is a standard test method published by ASTM International titled "Standard Test Method for Microindentation Hardness of Materials." This standard provides guidelines and procedures for measuring the microindentation hardness of various materials.
The microindentation hardness test is a widely used method to evaluate the hardness of materials at small scales. It involves applying a controlled force using a specialized indenter, typically a diamond or tungsten carbide, onto the surface of the material and measuring the resulting indentation size. The hardness value is determined based on the indentation size and the applied force.
American Society for Testing and Materials E384-99 (2014) specifies the, test procedures, and calculations necessary for conducting the microindentation hardness test. It provides guidelines for selecting the appropriate indenter, test load, and measurement parameters based on the material type and expected hardness range.
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