腐蚀产物对锌合金镀层切边腐蚀行为的影响

李永坤, 周佳顺, 王友彬, 高锋, 王欣鹏, 汤宏群

Influence of Corrosion Products on Corrosion Behavior of Cut Edges of Galvanized Coatings/Q235 Carbon Steel

LI Yongkun, ZHOU Jiashun, WANG Youbin, GAO Feng, WANG Xinpeng, TANG Hongqun

表3 图3中标记位置的EDS元素分析结果

Table 3 EDS elemental analysis results for the marked spots in Fig.3　　　(atomic fraction / %)

Sample Spot Zn Al Mg Cl Zn coating 1 48.76 - - 7.64 2 34.88 - - 5.18 3 30.16 - - 4.47 Zn-Mg coating 1 50.58 - 1.22 6.69 2 33.98 - - 8.06 3 31.17 - - 4.20 Zn-Al coating 1 38.22 12.40 - 7.78 2 31.26 0.85 - 4.25 3 29.93 0.81 - 3.96 Zn-Al-Mg coating 1 37.25 8.01 0.46 6.82 2 28.10 17.45 - 7.71 3 31.45 0.56 - 6.21