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Table 3 Electrochemical characteristics of the steel 45 in 3 % aqueous solution of NaCl after MPT with different coolants

From: Formation of Surface Corrosion-Resistant Nanocrystalline Structures on Steel

Type of coolant Corrosion potential, −Е, mV Corrosion current density i cor · 104, А/сm2
Untreated 535 0.54
Carbon 470 0.50
Silicon 525 0.46
Nitrogen 512 0.38