High-Performance Anticorrosive Polyester Coatings on Mild Steel in Mixed Acid Mixtures Environments

Table 5

Corrosion rate comparison of LAM-P/FR, LAM-V/FR-coated, and uncoated mild steel.

Types of coating
Parameter/value	LAM-V/FR-coated	LAM-P/FR-coated	Uncoated sample
Beta	156.9e^−3 V/decade	147.4e^−3 V/decade	166.5e^−3 V/decade
Ecorr	−378.3 mV	−770.7 mV	−545.9 mV
Icorr	24.98 nA	207.8 nA	63.30 µA
Corrosion rate	297.1e^−6 mpy	2.471e^−3 mpy	28.93 mpy

Comparison corrosion rate of LAM-P/FR-coated, LAM-V/FR-coated and uncoated MS in acidic environment 26% HNO₃ + 56% H₂SO₄ + 18% H₂O.