
Metals, Journal Year: 2025, Volume and Issue: 15(1), P. 59 - 59
Published: Jan. 11, 2025
The automotive industry employs structural steels with E-coats to reduce weight and increase the corrosion resistance of chassis, reducing CO2 emissions. Due their mechanical properties, part chassis is a composite advanced high-strength (AHSS). AHSSs are coated by conversion methods such as phosphate epoxy coating adherence resistance. main point this research characterize an AHSS complex-phase (CP) 780 in blank, E-coat organic using electrochemical noise, employing time-domain, frequency-domain, time–frequency-domain, chaotic system determine type kinetics each system. noise technique was made conventional three-electrode cell, saturated calomel reference electrode. Data were recorded at 1024 s, 1 data per second 3.5 wt. % NaCl electrolyte, according ASTM G199-09. results show how CP presented uniform corrosion, similarly sample; however, trend localized process when analyzed Wavelets transform. On other hand, increased for sample, values 2.58 × 106 Ω·cm2. According research, all samples susceptible present corrosion.
Language: Английский