The elastic modulus of a metallic glass is determined to be 95 GPa using nanoindentation testing with a diamond Berkovich tip. The Poisson’s ratio of the metallic glass is 0.36. The unloading stiffness as determined from the loaddisplacement data is 5.4 × 105 N/m. The maximum load is 120 mN. What is the hardness of the metallic glass at this indentation depth?
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