The presence of the greater residual tensile stress induces the stress corrosion cracking in the course of the acid pickling.
其原因是磁屏表面存在较大的切向拉应力，从而在酸洗过程中产生了应力腐蚀开裂。
2
This article introduces the corrosion control during acid pickling of boiler with hydrochloric acid.
介绍了锅炉盐酸清洗不同阶段钢的腐蚀规律和腐蚀控制方法。
3
Corrosion inhibitor must be added in sealing, sanding, degreasing and pickling to avoid over-corrosion, and sealing should be operated at low temperature.