A portable corrosion rate meter was used to comparatively measure the annual corrosion rates of 20 steel tube and its integral hot-dip aluminizing coating in acidic and alkali corrosive mediums.

• 采用便携式瞬时腐蚀速度测量仪,对20钢及其热浸镀铝件分别在酸性和碱性介质中测定年腐蚀速率并进行比较。