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3. Heterogeneous materials
3.1 Critical penetration and Vickers indentation pressure of a bilayer material
We consider a bilayer, namely a material, called substrate and of plastic flow stress σ 0s , coated with a film of uniform thickness e and flow stress σ 0e . Each of the materials is assumed to be homogeneous and RPP, their Vickers hardness, which we note for simplicity H s and H e , is of the order of 3 times their flow stress 2.3...
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Heterogeneous materials
