Table 2

The surface roughness of the samples before and after hardening.

Powder alloy Surface roughness (µm)

Before roller burnishing After roller burnishing

Processing at mode N1 Processing at mode N2
Fe/Cu15 Ra 1.46 Ra 0.615 Ra 0.411
Fe/Cu20/Cr11/Ni8 Ra 1.6 Ra 0.515 Ra 0.495

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