PT Journal
AU Kajanek, D
   Hadzima, B
   Pastorek, F
TI Electrochemical Characterization of Az31 Magnesium Alloy Treated by Ultrasonic Impact Peening (Uip)
SO Communications - Scientific Letters of the University of Zilina
PY 2018
BP 24
EP 29
VL 20
IS 3
DI 10.26552/com.C.2018.3.24-29
WP https://komunikacie.uniza.sk/artkey/csl-201803-0005.php
DE magnesium alloy; corrosion; ultrasonic impact peening
SN 13354205
AB Electrochemical characteristics of AZ31 magnesium alloy after impacting by ultrasonic impact peening (UIP) were measured in order to evaluate its effect on corrosion resistance of mentioned alloy. For this purpose, potentio-dynamic polarization (PD) tests and electrochemical impedance spectroscopy (EIS) of ground and impacted samples were performed in 0.1 M NaCl solution at the temperature of 22±2 °C after 5 minutes of potential stabilization. The obtained PD curves were analysed using the Tafel extrapolation method and data from EIS measurements in form of Nyquist plots were quantified by the equivalent circuit method. The results showed clearly that application of the UIP significantly deteriorated corrosion resistance of AZ31 alloy in the chosen testing solution.
ER