Indentation Hardness Measurements at Macro-, Micro-, and Nanoscale: A Critical Overview | SpringerLink
Vickers hardness test - tec-science
Theoretical model and testing method for ball indentation based on the proportional superposition of energy in pure elasticity and pure plasticity - ScienceDirect
Indentation Hardness Measurements at Macro-, Micro-, and Nanoscale: A Critical Overview | SpringerLink
Schematic of ball indentation hardness test | Download Scientific Diagram
Brinell Hardness Test for Metals - Materials-Today.com