在90℃、20 wt.%盐酸中，未添加缓蚀剂的空白对照组，对N80钢片进行失重法评价，用蒸馏水冲洗N80钢片，同时经过干燥处理后，采用原子力显微镜观察实验后钢片的表面形貌的粗糙度。

In 90°C, 20 wt.% hydrochloric acid, without adding corrosion inhibitor in the blank control group, the weight loss method was evaluated on N80 steel sheets, and the roughness of the surface morphology of the experimented steel sheets was observed by AFM by rinsing the N80 steel sheets with distilled water while undergoing a drying process.