将失重法评价后的N80钢片，用蒸馏水冲洗并烘干后，采用扫描电镜（SEM）的表面形貌进行分析，扫描电镜时配备了能量光谱分析仪（EDS）对钢片表面的元素组成进行检测。添加缓蚀剂为自主合成的0.5%6-CL吲哚嗪衍生物。

The N80 steel sheets evaluated by the weight loss method, rinsed with distilled water and dried, were analyzed by surface morphology using scanning electron microscopy (SEM), which was equipped with an energy spectrum analyzer (EDS) to detect the elemental composition of the surface of the steel sheets.The added corrosion inhibitor was an independently synthesized 0.5% 6-CL indolizine derivative.