3.5%NaCl溶液中硝基巴比妥酸对AZ31B与AZ91D镁合金腐蚀的缓蚀作用及机理研究

翟亚如, 熊金平, 赵景茂

Corrosion Inhibition Performance of Nitrobarbituric Acid on Mg-alloys AZ31B and AZ91D in 3.5%NaCl Solution

ZHAI Yaru, XIONG Jinping, ZHAO Jingmao

图7 AZ91D镁合金在含有1 g/L NBA的3.5%NaCl溶液中分别浸泡24、48和72 h的SEM图

Fig.7 SEM images of AZ91D Mg-alloy soaked in 3.5%NaCl solution containing 1 g/L NBA for 24, 48 and 72 h, respectively: (a) 24 h, (b) 48 h and (c) 72 h at 25 ℃; (d) 24 h, (e) 48 h and (f) 72 h at 35 ℃; (g) 24 h, (h) 48 h and (i) 72 h at 50 ℃