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This experiment aims to introduce the students to the Rockwell hardness testing and its relations to other mechanical properties such as yield strength and
Materials scientists learn about these mechanical properties by testing materials Results from the tests depend on the size and shape of material to be
?Hardness and Hardness testing ?Effect of grain boundaries on the strength of metals Examples: Modulus of elasticity of steel is 207 Gpa
Indentation hardness measures the resistance of a sample to material deformation due to a constant compression load from a sharp object; they are primarily used
Savannah River Site, Material Science Course, CS-CRO-IT-FUND-10, Rev For example, two lots of material that have the same hardness may or may not be
Scratch file tests: The idea is that one material is capable of scratching another The Mohs and file hardness tests are examples of this type