时效时间对锻态AZ80镁合金第二相析出及柱面取向表面腐蚀性能的影响

魏珂正, 蒋文龙, 龚奕维, 裘欣, 丁汉林, 项重辰, 王子健

Effect of Aging Time on Precipitation of Second Phase and Corrosion Performance of Prismatic Plane of As-forged AZ80 Mg-alloy

WEI Kezheng, JIANG Wenlong, GONG Yiwei, QIU Xin, DING Hanlin, XIANG Chongchen, WANG Zijian

表1 基于Nyquist图谱和等效电路图的拟合数据

Table 1 Corresponding values obtained from the data fitting of Nyquist plots and equivalent circuit diagram

Sample Rs / Ω·cm2 Rct / Ω·cm2 Ydl / Ω-1·cm2·s-1 ndl Rf / Ω·cm2 L / H RL / Ω·cm2 0.5 h aging 11.96 3414 2.38 × 10-5 0.79 1970 193990 0.04 1 h aging 0.36 4357 1.52 × 10-5 1 3697 88257 0.01 2 h aging 0.32 3475 1.76 × 10-5 0.86 2488 258070 0.01 4 h aging 0.44 2525 4.55 × 10-6 1.08 1566 201.6 1.52