In addition to cracks resulting from welding in boiler and pressure vessels, there are also corrosion cracks due to corrosive environment.

锅炉及压力容器除了焊接引起的裂纹外，还存在着由腐蚀性环境而引起的腐蚀开裂。

youdao

Galvanized steel is widely used in industry due to its excellent corrosion resistance. However, the zinc coating greatly reduces the welding process property of galvanized steel.

镀锌钢因其良好的抗腐蚀性能而广泛应用于各个领域，而镀锌层的存在使得镀锌钢的焊接过程和焊接质量受到不利影响。

youdao

U.S. and Iraqi officials agree that smuggling of crude oil seems to be less than was previously thought, and some of the pipeline failures that were routinely put down to acts of sabotage may have been due to corrosion or faulty welding.

NPR: Iraq Oil Minister Vows to Fight Corruption, Smuggling