样品放置方式对镀Zn-10%Al格宾网丝盐雾试验结果的影响

Influence of Sample Placement Modes on Salt Spray Test Results of Zn-10%Al Coated Gabion Mesh Wires

研究了盐雾试验中样品放置方式对镀Zn-10%Al格宾网丝腐蚀行为的影响,并分析了格宾网丝在1 000h中性盐雾试验中的腐蚀过程和腐蚀特征。结果表明:格宾网丝的盐雾腐蚀过程可分为初期、减速和加速腐蚀3个阶段,最终的腐蚀形貌为样品表面发黑并伴生白锈;格宾网丝的盐雾试验中,采用垂直悬挂放置的样品更易获得均匀腐蚀的表面,是较为适合的样品放置方式。

The effect of sample placement modes on the corrosion behavior of Zn-10%Al coated gabion mesh wires during salt spray test was studied,and the corrosion process and corrosion feature of gabion mesh wires in1 000 hneutral salt spray test were analyzed.The results show that the salt spray corrosion process of gabion mesh wires could be divided into initial,decelerating corrosion and accelerating corrosion three stages.The final corrosion morphology was sample surface turning black accompanied by producing white rusts.It was found that in gabion mesh wires salt spray test,vertical hanging sample placement mode was easier to get well-distributed corrosion surface and it was a more suitable sample placement mode.